com.lowagie.text.pdf.PdfWriter Maven / Gradle / Ivy
/*
* $Id: PdfWriter.java 4095 2009-11-12 14:40:41Z blowagie $
*
* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.pdf;
import com.lowagie.text.DocListener;
import com.lowagie.text.DocWriter;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.Image;
import com.lowagie.text.ImgJBIG2;
import com.lowagie.text.ImgWMF;
import com.lowagie.text.Rectangle;
import com.lowagie.text.Table;
import com.lowagie.text.error_messages.MessageLocalization;
import com.lowagie.text.pdf.collection.PdfCollection;
import com.lowagie.text.pdf.events.PdfPageEventForwarder;
import com.lowagie.text.pdf.interfaces.PdfAnnotations;
import com.lowagie.text.pdf.interfaces.PdfDocumentActions;
import com.lowagie.text.pdf.interfaces.PdfEncryptionSettings;
import com.lowagie.text.pdf.interfaces.PdfPageActions;
import com.lowagie.text.pdf.interfaces.PdfRunDirection;
import com.lowagie.text.pdf.interfaces.PdfVersion;
import com.lowagie.text.pdf.interfaces.PdfViewerPreferences;
import com.lowagie.text.pdf.interfaces.PdfXConformance;
import com.lowagie.text.pdf.internal.PdfVersionImp;
import com.lowagie.text.pdf.internal.PdfXConformanceImp;
import com.lowagie.text.xml.xmp.XmpWriter;
import java.awt.Color;
import java.awt.color.ICC_Profile;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.security.cert.Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Formatter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.stream.Collectors;
/**
* A DocWriter class for PDF.
*
* When this PdfWriter is added
* to a certain PdfDocument, the PDF representation of every Element
* added to this Document will be written to the outputstream.
*/
public class PdfWriter extends DocWriter implements
PdfViewerPreferences,
PdfEncryptionSettings,
PdfVersion,
PdfDocumentActions,
PdfPageActions,
PdfXConformance,
PdfRunDirection,
PdfAnnotations {
/**
* The highest generation number possible.
* @since iText 2.1.6
*/
public static final int GENERATION_MAX = 65535;
// INNER CLASSES
/**
* This class generates the structure of a PDF document.
*
* This class covers the third section of Chapter 5 in the 'Portable Document Format
* Reference Manual version 1.3' (page 55-60). It contains the body of a PDF document
* (section 5.14) and it can also generate a Cross-reference Table (section 5.15).
*
* @see PdfWriter
* @see PdfObject
* @see PdfIndirectObject
*/
public static class PdfBody {
// inner classes
/**
* PdfCrossReference is an entry in the PDF Cross-Reference table.
*/
public static class PdfCrossReference implements Comparable {
/**
* String template for cross-reference entry PDF representation.
*
* @see Formatter
*/
private static final String CROSS_REFERENCE_ENTRY_FORMAT = "%010d %05d %c \n";
// membervariables
private int type;
/** Byte offset in the PDF file. */
private long offset;
private int refnum;
/** generation of the object. */
private int generation;
// constructors
/**
* Constructs a cross-reference element for a PdfIndirectObject.
* @param refnum the reference number
* @param offset byte offset of the object
* @param generation generation number of the object
*/
public PdfCrossReference(int refnum, long offset, int generation) {
type = 0;
this.offset = offset;
this.refnum = refnum;
this.generation = generation;
}
/**
* Constructs a cross-reference element for a PdfIndirectObject.
* @param refnum the reference number
* @param offset byte offset of the object
*/
public PdfCrossReference(int refnum, long offset) {
type = 1;
this.offset = offset;
this.refnum = refnum;
this.generation = 0;
}
public PdfCrossReference(int type, int refnum, long offset, int generation) {
this.type = type;
this.offset = offset;
this.refnum = refnum;
this.generation = generation;
}
int getRefnum() {
return refnum;
}
/**
* Writes PDF representation of cross-reference entry to passed output stream.
*
* @param os Output stream this entry to write to
* @throws IOException If any I/O error occurs
*/
public void toPdf(OutputStream os) throws IOException {
// TODO: are generation number and 'In use' keyword bound that way?
final char inUse = generation == GENERATION_MAX ? 'f' : 'n';
os.write(getISOBytes(String.format(CROSS_REFERENCE_ENTRY_FORMAT, offset, generation, inUse)));
}
/**
* Writes PDF syntax to the OutputStream
* @param midSize the mid size
* @param os the OutputStream
* @throws IOException on error
*/
public void toPdf(int midSize, OutputStream os) throws IOException {
os.write((byte)type);
while (--midSize >= 0)
os.write((byte)((offset >>> (8 * midSize)) & 0xff));
os.write((byte)((generation >>> 8) & 0xff));
os.write((byte)(generation & 0xff));
}
/**
* Compares current {@link PdfCrossReference entry} with passed {@code reference} by PDF object number.
*/
@Override
public int compareTo(final PdfCrossReference reference) {
return Integer.compare(refnum, reference.refnum);
}
/**
* Checks if two entries are equal if their PDF object numbers are equal.
*
* @param obj Another cross-reference entry
* @return If null, not of type {@link PdfCrossReference} or object numbers are not equal,
* returns false; true otherwise
*/
@Override
public boolean equals(Object obj) {
if (!(obj instanceof PdfCrossReference)) {
return false;
}
final PdfCrossReference other = (PdfCrossReference)obj;
return refnum == other.refnum;
}
@Override
public int hashCode() {
return refnum;
}
}
private static final int OBJSINSTREAM = 200;
// membervariables
/** array containing the cross-reference table of the normal objects. */
private TreeSet xrefs;
private int refnum;
/** the current byte position in the body. */
private long position;
private PdfWriter writer;
private ByteBuffer index;
private ByteBuffer streamObjects;
private int currentObjNum;
private int numObj = 0;
// constructors
/**
* Constructs a new PdfBody.
* @param writer
*/
PdfBody(PdfWriter writer) {
xrefs = new TreeSet<>();
xrefs.add(new PdfCrossReference(0, 0, GENERATION_MAX));
position = writer.getOs().getCounter();
refnum = 1;
this.writer = writer;
}
// methods
void setRefnum(int refnum) {
this.refnum = refnum;
}
private PdfWriter.PdfBody.PdfCrossReference addToObjStm(PdfObject obj, int nObj) throws IOException {
if (numObj >= OBJSINSTREAM)
flushObjStm();
if (index == null) {
index = new ByteBuffer();
streamObjects = new ByteBuffer();
currentObjNum = getIndirectReferenceNumber();
numObj = 0;
}
int p = streamObjects.size();
int idx = numObj++;
PdfEncryption enc = writer.crypto;
writer.crypto = null;
obj.toPdf(writer, streamObjects);
writer.crypto = enc;
streamObjects.append(' ');
index.append(nObj).append(' ').append(p).append(' ');
return new PdfWriter.PdfBody.PdfCrossReference(2, nObj, currentObjNum, idx);
}
private void flushObjStm() throws IOException {
if (numObj == 0)
return;
int first = index.size();
index.append(streamObjects);
PdfStream stream = new PdfStream(index.toByteArray());
stream.flateCompress(writer.getCompressionLevel());
stream.put(PdfName.TYPE, PdfName.OBJSTM);
stream.put(PdfName.N, new PdfNumber(numObj));
stream.put(PdfName.FIRST, new PdfNumber(first));
add(stream, currentObjNum);
index = null;
streamObjects = null;
numObj = 0;
}
/**
* Adds a PdfObject to the body.
*
* This methods creates a PdfIndirectObject with a
* certain number, containing the given PdfObject.
* It also adds a PdfCrossReference for this object
* to an ArrayList that will be used to build the
* Cross-reference Table.
*
* @param object a PdfObject
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject add(PdfObject object) throws IOException {
return add(object, getIndirectReferenceNumber());
}
PdfIndirectObject add(PdfObject object, boolean inObjStm) throws IOException {
return add(object, getIndirectReferenceNumber(), inObjStm);
}
/**
* Gets a PdfIndirectReference for an object that will be created in the future.
* @return a PdfIndirectReference
*/
PdfIndirectReference getPdfIndirectReference() {
return new PdfIndirectReference(0, getIndirectReferenceNumber());
}
int getIndirectReferenceNumber() {
int n = refnum++;
xrefs.add(new PdfCrossReference(n, 0, GENERATION_MAX));
return n;
}
/**
* Adds a PdfObject to the body given an already existing
* PdfIndirectReference.
*
* This methods creates a PdfIndirectObject with the number given by
* ref, containing the given PdfObject.
* It also adds a PdfCrossReference for this object
* to an ArrayList that will be used to build the
* Cross-reference Table.
*
* @param object a PdfObject
* @param ref a PdfIndirectReference
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject add(PdfObject object, PdfIndirectReference ref) throws IOException {
return add(object, ref.getNumber());
}
PdfIndirectObject add(PdfObject object, PdfIndirectReference ref, boolean inObjStm) throws IOException {
return add(object, ref.getNumber(), inObjStm);
}
PdfIndirectObject add(PdfObject object, int refNumber) throws IOException {
return add(object, refNumber, true); // to false
}
PdfIndirectObject add(PdfObject object, int refNumber, boolean inObjStm) throws IOException {
if (inObjStm && object.canBeInObjStm() && writer.isFullCompression()) {
PdfCrossReference pxref = addToObjStm(object, refNumber);
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, object, writer);
if (!xrefs.add(pxref)) {
xrefs.remove(pxref);
xrefs.add(pxref);
}
return indirect;
}
else {
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, object, writer);
PdfCrossReference pxref = new PdfCrossReference(refNumber, position);
if (!xrefs.add(pxref)) {
xrefs.remove(pxref);
xrefs.add(pxref);
}
indirect.writeTo(writer.getOs());
position = writer.getOs().getCounter();
return indirect;
}
}
/**
* Returns the offset of the Cross-Reference table.
*
* @return an offset
*/
long offset() {
return position;
}
/**
* Returns the total number of objects contained in the CrossReferenceTable of this Body.
*
* @return a number of objects
*/
int size() {
return Math.max((xrefs.last()).getRefnum() + 1, refnum);
}
/**
* Returns the CrossReferenceTable of the Body.
* @param os
* @param root
* @param info
* @param encryption
* @param fileID
* @param prevxref
* @throws IOException
*/
void writeCrossReferenceTable(OutputStream os, PdfIndirectReference root, PdfIndirectReference info, PdfIndirectReference encryption, PdfObject fileID, int prevxref) throws IOException {
int refNumber = 0;
// Old-style xref tables limit object offsets to 10 digits
boolean useNewXrefFormat = writer.isFullCompression() || position > 9_999_999_999L;
if (useNewXrefFormat) {
flushObjStm();
refNumber = getIndirectReferenceNumber();
xrefs.add(new PdfCrossReference(refNumber, position));
}
PdfCrossReference entry = xrefs.first();
int first = entry.getRefnum();
int len = 0;
ArrayList sections = new ArrayList<>();
for (PdfCrossReference xref1 : xrefs) {
entry = xref1;
if (first + len == entry.getRefnum())
++len;
else {
sections.add(first);
sections.add(len);
first = entry.getRefnum();
len = 1;
}
}
sections.add(first);
sections.add(len);
PdfTrailer trailer = new PdfTrailer(size(), root, info, encryption, fileID, prevxref);
if (useNewXrefFormat) {
int mid = 8 - (Long.numberOfLeadingZeros(position) >> 3);
ByteBuffer buf = new ByteBuffer();
for (PdfCrossReference xref : xrefs) {
entry = xref;
entry.toPdf(mid, buf);
}
PdfStream xr = new PdfStream(buf.toByteArray());
buf = null;
xr.flateCompress(writer.getCompressionLevel());
xr.putAll(trailer);
xr.put(PdfName.W, new PdfArray(new int[]{1, mid, 2}));
xr.put(PdfName.TYPE, PdfName.XREF);
PdfArray idx = new PdfArray();
for (Integer section : sections) idx.add(new PdfNumber(section));
xr.put(PdfName.INDEX, idx);
PdfEncryption enc = writer.crypto;
writer.crypto = null;
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, xr, writer);
indirect.writeTo(writer.getOs());
writer.crypto = enc;
}
else {
os.write(getISOBytes("xref\n"));
Iterator i = xrefs.iterator();
for (int k = 0; k < sections.size(); k += 2) {
first = sections.get(k);
len = sections.get(k + 1);
os.write(getISOBytes(String.valueOf(first)));
os.write(getISOBytes(" "));
os.write(getISOBytes(String.valueOf(len)));
os.write('\n');
while (len-- > 0) {
entry = i.next();
entry.toPdf(os);
}
}
// make the trailer
trailer.toPdf(writer, os);
}
}
}
/**
* PdfTrailer is the PDF Trailer object.
*
* This object is described in the 'Portable Document Format Reference Manual version 1.3'
* section 5.16 (page 59-60).
*/
static class PdfTrailer extends PdfDictionary {
// constructors
/**
* Constructs a PDF-Trailer.
*
* @param size the number of entries in the PdfCrossReferenceTable
* @param root an indirect reference to the root of the PDF document
* @param info an indirect reference to the info object of the PDF document
* @param encryption
* @param fileID
* @param prevxref
*/
PdfTrailer(int size, PdfIndirectReference root, PdfIndirectReference info, PdfIndirectReference encryption, PdfObject fileID, int prevxref) {
put(PdfName.SIZE, new PdfNumber(size));
put(PdfName.ROOT, root);
if (info != null) {
put(PdfName.INFO, info);
}
if (encryption != null)
put(PdfName.ENCRYPT, encryption);
if (fileID != null)
put(PdfName.ID, fileID);
if (prevxref > 0)
put(PdfName.PREV, new PdfNumber(prevxref));
}
/**
* Returns the PDF representation of this PdfObject.
* @param writer
* @param os
* @throws IOException
*/
public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
os.write(getISOBytes("trailer\n"));
super.toPdf(null, os);
os.write('\n');
}
}
// ESSENTIALS
// Construct a PdfWriter instance
/**
* Constructs a PdfWriter.
*/
protected PdfWriter() {
}
/**
* Constructs a PdfWriter.
*
* Remark: a PdfWriter can only be constructed by calling the method
* getInstance(Document document, OutputStream os).
*
* @param document The PdfDocument that has to be written
* @param os The OutputStream the writer has to write to.
*/
protected PdfWriter(PdfDocument document, OutputStream os) {
super(document, os);
pdf = document;
directContent = new PdfContentByte(this);
directContentUnder = new PdfContentByte(this);
}
/**
* Use this method to get an instance of the PdfWriter.
*
* @param document The Document that has to be written
* @param os The OutputStream the writer has to write to.
* @return a new PdfWriter
*
* @throws DocumentException on error
*/
public static PdfWriter getInstance(Document document, OutputStream os)
throws DocumentException {
PdfDocument pdf = new PdfDocument();
pdf.setTextRenderingOptions(document.getTextRenderingOptions());
document.addDocListener(pdf);
PdfWriter writer = new PdfWriter(pdf, os);
pdf.addWriter(writer);
return writer;
}
/**
* Use this method to get an instance of the PdfWriter.
*
* @return a new PdfWriter
* @param document The Document that has to be written
* @param os The OutputStream the writer has to write to.
* @param listener A DocListener to pass to the PdfDocument.
* @throws DocumentException on error
*/
public static PdfWriter getInstance(Document document, OutputStream os, DocListener listener)
throws DocumentException {
PdfDocument pdf = new PdfDocument();
pdf.setTextRenderingOptions(document.getTextRenderingOptions());
pdf.addDocListener(listener);
document.addDocListener(pdf);
PdfWriter writer = new PdfWriter(pdf, os);
pdf.addWriter(writer);
return writer;
}
// the PdfDocument instance
/** the pdfdocument object. */
protected PdfDocument pdf;
/**
* Gets the PdfDocument associated with this writer.
* @return the PdfDocument
*/
PdfDocument getPdfDocument() {
return pdf;
}
/**
* Use this method to get the info dictionary if you want to
* change it directly (add keys and values to the info dictionary).
* @return the info dictionary
*/
public PdfDictionary getInfo() {
return pdf.getInfo();
}
/**
* Use this method to get the current vertical page position.
* @param ensureNewLine Tells whether a new line shall be enforced. This may cause side effects
* for elements that do not terminate the lines they've started because those lines will get
* terminated.
* @return The current vertical page position.
*/
public float getVerticalPosition(boolean ensureNewLine) {
return pdf.getVerticalPosition(ensureNewLine);
}
/**
* Sets the initial leading for the PDF document.
* This has to be done before the document is opened.
* @param leading the initial leading
* @since 2.1.6
* @throws DocumentException if you try setting the leading after the document was opened.
*/
public void setInitialLeading(float leading) throws DocumentException {
if (open)
throw new DocumentException(MessageLocalization.getComposedMessage("you.can.t.set.the.initial.leading.if.the.document.is.already.open"));
pdf.setLeading(leading);
}
// the PdfDirectContentByte instances
/*
* You should see Direct Content as a canvas on which you can draw
* graphics and text. One canvas goes on top of the page (getDirectContent),
* the other goes underneath (getDirectContentUnder).
* You can always the same object throughout your document,
* even if you have moved to a new page. Whatever you add on
* the canvas will be displayed on top or under the current page.
*/
/** The direct content in this document. */
protected PdfContentByte directContent;
/** The direct content under in this document. */
protected PdfContentByte directContentUnder;
/**
* Use this method to get the direct content for this document.
* There is only one direct content, multiple calls to this method
* will allways retrieve the same object.
* @return the direct content
*/
public PdfContentByte getDirectContent() {
if (!open)
throw new RuntimeException(MessageLocalization.getComposedMessage("the.document.is.not.open"));
return directContent;
}
/**
* Use this method to get the direct content under for this document.
* There is only one direct content, multiple calls to this method
* will always retrieve the same object.
* @return the direct content
*/
public PdfContentByte getDirectContentUnder() {
if (!open)
throw new RuntimeException(MessageLocalization.getComposedMessage("the.document.is.not.open"));
return directContentUnder;
}
/**
* Resets all the direct contents to empty.
* This happens when a new page is started.
*/
void resetContent() {
directContent.reset();
directContentUnder.reset();
}
// PDF body
/*
* A PDF file has 4 parts: a header, a body, a cross-reference table, and a trailer.
* The body contains all the PDF objects that make up the PDF document.
* Each element gets a reference (a set of numbers) and the byte position of
* every object is stored in the cross-reference table.
* Use these methods only if you know what you're doing.
*/
/** body of the PDF document */
protected PdfBody body;
/**
* Adds the local destinations to the body of the document.
* @param dest the HashMap containing the destinations
* @throws IOException on error
*/
void addLocalDestinations(TreeMap dest) throws IOException {
for (Object o : dest.entrySet()) {
Map.Entry entry = (Map.Entry) o;
String name = (String) entry.getKey();
Object[] obj = (Object[]) entry.getValue();
PdfDestination destination = (PdfDestination) obj[2];
if (obj[1] == null)
obj[1] = getPdfIndirectReference();
if (destination == null)
addToBody(new PdfString("invalid_" + name), (PdfIndirectReference) obj[1]);
else
addToBody(destination, (PdfIndirectReference) obj[1]);
}
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the PDF object to add
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object) throws IOException {
PdfIndirectObject iobj = body.add(object);
return iobj;
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the PDF object to add
* @param inObjStm a boolean
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object, boolean inObjStm) throws IOException {
PdfIndirectObject iobj = body.add(object, inObjStm);
return iobj;
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the object to add
* @param ref the IndirectReference of that object
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object, PdfIndirectReference ref) throws IOException {
PdfIndirectObject iobj = body.add(object, ref);
return iobj;
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the object to add
* @param ref the indirect reference
* @param inObjStm a boolean
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object, PdfIndirectReference ref, boolean inObjStm) throws IOException {
PdfIndirectObject iobj = body.add(object, ref, inObjStm);
return iobj;
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the object to add
* @param refNumber the reference number
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object, int refNumber) throws IOException {
PdfIndirectObject iobj = body.add(object, refNumber);
return iobj;
}
/**
* Use this method to add a PDF object to the PDF body.
* Use this method only if you know what you're doing!
* @param object the object to add
* @param refNumber the reference number
* @param inObjStm a boolean
* @return a PdfIndirectObject
* @throws IOException thrown when an I/O operation fails
*/
public PdfIndirectObject addToBody(PdfObject object, int refNumber, boolean inObjStm) throws IOException {
PdfIndirectObject iobj = body.add(object, refNumber, inObjStm);
return iobj;
}
/**
* Use this to get an PdfIndirectReference for an object that
* will be created in the future.
* Use this method only if you know what you're doing!
* @return the PdfIndirectReference
*/
public PdfIndirectReference getPdfIndirectReference() {
return body.getPdfIndirectReference();
}
int getIndirectReferenceNumber() {
return body.getIndirectReferenceNumber();
}
/**
* Returns the outputStreamCounter.
* @return the outputStreamCounter
*/
OutputStreamCounter getOs() {
return os;
}
// PDF Catalog
/*
* The Catalog is also called the root object of the document.
* Whereas the Cross-Reference maps the objects number with the
* byte offset so that the viewer can find the objects, the
* Catalog tells the viewer the numbers of the objects needed
* to render the document.
*/
protected PdfDictionary getCatalog(PdfIndirectReference rootObj)
{
PdfDictionary catalog = pdf.getCatalog(rootObj);
// [F12] tagged PDF
if (tagged) {
try {
getStructureTreeRoot().buildTree();
}
catch (Exception e) {
throw new ExceptionConverter(e);
}
catalog.put(PdfName.STRUCTTREEROOT, structureTreeRoot.getReference());
PdfDictionary mi = new PdfDictionary();
mi.put(PdfName.MARKED, PdfBoolean.PDFTRUE);
if (userProperties)
mi.put(PdfName.USERPROPERTIES, PdfBoolean.PDFTRUE);
catalog.put(PdfName.MARKINFO, mi);
}
// [F13] OCG
if (!documentOCG.isEmpty()) {
fillOCProperties(false);
catalog.put(PdfName.OCPROPERTIES, OCProperties);
}
return catalog;
}
/** Holds value of property extraCatalog this is used for Output Intents. */
protected PdfDictionary extraCatalog;
/**
* Sets extra keys to the catalog.
* @return the catalog to change
*/
public PdfDictionary getExtraCatalog() {
if (extraCatalog == null)
extraCatalog = new PdfDictionary();
return this.extraCatalog;
}
// PdfPages
/*
* The page root keeps the complete page tree of the document.
* There's an entry in the Catalog that refers to the root
* of the page tree, the page tree contains the references
* to pages and other page trees.
*/
/** The root of the page tree. */
protected PdfPages root = new PdfPages(this);
/** The PdfIndirectReference to the pages. */
protected ArrayList pageReferences = new ArrayList<>();
/** The current page number. */
protected int currentPageNumber = 1;
/**
* The value of the Tabs entry in the page dictionary.
* @since 2.1.5
*/
protected PdfName tabs = null;
/**
* Use this method to make sure the page tree has a linear structure
* (every leave is attached directly to the root).
* Use this method to allow page reordering with method reorderPages.
*/
public void setLinearPageMode() {
root.setLinearMode(null);
}
/**
* Use this method to reorder the pages in the document.
* A null argument value only returns the number of pages to process.
* It is advisable to issue a Document.newPage() before using this method.
* @return the total number of pages
* @param order an array with the new page sequence. It must have the
* same size as the number of pages.
* @throws DocumentException if all the pages are not present in the array
*/
public int reorderPages(int[] order) throws DocumentException {
return root.reorderPages(order);
}
/**
* Use this method to get a reference to a page existing or not.
* If the page does not exist yet the reference will be created
* in advance. If on closing the document, a page number greater
* than the total number of pages was requested, an exception
* is thrown.
* @param page the page number. The first page is 1
* @return the reference to the page
*/
public PdfIndirectReference getPageReference(int page) {
--page;
if (page < 0)
throw new IndexOutOfBoundsException(MessageLocalization.getComposedMessage("the.page.number.must.be.gt.eq.1"));
PdfIndirectReference ref;
if (page < pageReferences.size()) {
ref = pageReferences.get(page);
if (ref == null) {
ref = body.getPdfIndirectReference();
pageReferences.set(page, ref);
}
}
else {
int empty = page - pageReferences.size();
for (int k = 0; k < empty; ++k)
pageReferences.add(null);
ref = body.getPdfIndirectReference();
pageReferences.add(ref);
}
return ref;
}
/**
* Gets the pagenumber of this document.
* This number can be different from the real pagenumber,
* if you have (re)set the page number previously.
* @return a page number
*/
public int getPageNumber() {
return pdf.getPageNumber();
}
PdfIndirectReference getCurrentPage() {
return getPageReference(currentPageNumber);
}
public int getCurrentPageNumber() {
return currentPageNumber;
}
/**
* Sets the value for the Tabs entry in the page tree.
* @param tabs Can be PdfName.R, PdfName.C or PdfName.S.
* Since the Adobe Extensions Level 3, it can also be PdfName.A
* or PdfName.W
* @since 2.1.5
*/
public void setTabs(PdfName tabs) {
this.tabs = tabs;
}
/**
* Returns the value to be used for the Tabs entry in the page tree.
* @since 2.1.5
* @return a PdfName of the value of the Tabs entry in the page dictionnary
*/
public PdfName getTabs() {
return tabs;
}
/**
* Adds some PdfContents to this Writer.
*
* The document has to be open before you can begin to add content
* to the body of the document.
*
* @return a PdfIndirectReference
* @param page the PdfPage to add
* @param contents the PdfContents of the page
* @throws PdfException on error
*/
PdfIndirectReference add(PdfPage page, PdfContents contents) throws PdfException {
if (!open) {
throw new PdfException(MessageLocalization.getComposedMessage("the.document.is.not.open"));
}
PdfIndirectObject object;
try {
object = addToBody(contents);
}
catch(IOException ioe) {
throw new ExceptionConverter(ioe);
}
page.add(object.getIndirectReference());
// [U5]
if (group != null) {
page.put(PdfName.GROUP, group);
group = null;
}
else if (rgbTransparencyBlending) {
PdfDictionary pp = new PdfDictionary();
pp.put(PdfName.TYPE, PdfName.GROUP);
pp.put(PdfName.S, PdfName.TRANSPARENCY);
pp.put(PdfName.CS, PdfName.DEVICERGB);
page.put(PdfName.GROUP, pp);
}
root.addPage(page);
currentPageNumber++;
return null;
}
// page events
/*
* Page events are specific for iText, not for PDF.
* Upon specific events (for instance when a page starts
* or ends), the corresponding method in the page event
* implementation that is added to the writer is invoked.
*/
/** The PdfPageEvent for this document. */
private PdfPageEvent pageEvent;
/**
* Sets the PdfPageEvent for this document.
* @param event the PdfPageEvent for this document
*/
public void setPageEvent(PdfPageEvent event) {
if (event == null) this.pageEvent = null;
else if (this.pageEvent == null) this.pageEvent = event;
else if (this.pageEvent instanceof PdfPageEventForwarder) ((PdfPageEventForwarder)this.pageEvent).addPageEvent(event);
else {
PdfPageEventForwarder forward = new PdfPageEventForwarder();
forward.addPageEvent(this.pageEvent);
forward.addPageEvent(event);
this.pageEvent = forward;
}
}
/**
* Gets the PdfPageEvent for this document or null
* if none is set.
* @return the PdfPageEvent for this document or null
* if none is set
*/
public PdfPageEvent getPageEvent() {
return pageEvent;
}
// Open and Close methods + method that create the PDF
/** A number referring to the previous Cross-Reference Table. */
protected int prevxref = 0;
/**
* Signals that the Document has been opened and that
* Elements can be added.
*
* When this method is called, the PDF-document header is
* written to the outputstream.
* @see com.lowagie.text.DocWriter#open()
*/
public void open() {
super.open();
try {
pdf_version.writeHeader(os);
body = new PdfBody(this);
if (pdfxConformance.isPdfX32002()) {
PdfDictionary sec = new PdfDictionary();
sec.put(PdfName.GAMMA, new PdfArray(new float[]{2.2f,2.2f,2.2f}));
sec.put(PdfName.MATRIX, new PdfArray(new float[]{0.4124f,0.2126f,0.0193f,0.3576f,0.7152f,0.1192f,0.1805f,0.0722f,0.9505f}));
sec.put(PdfName.WHITEPOINT, new PdfArray(new float[]{0.9505f,1f,1.089f}));
PdfArray arr = new PdfArray(PdfName.CALRGB);
arr.add(sec);
setDefaultColorspace(PdfName.DEFAULTRGB, addToBody(arr).getIndirectReference());
}
}
catch(IOException ioe) {
throw new ExceptionConverter(ioe);
}
}
/**
* Signals that the Document was closed and that no other
* Elements will be added.
*
* The pages-tree is built and written to the outputstream.
* A Catalog is constructed, as well as an Info-object,
* the reference table is composed and everything is written
* to the outputstream embedded in a Trailer.
* @see com.lowagie.text.DocWriter#close()
*/
@Override
public void close() {
if (open) {
if ((currentPageNumber - 1) != pageReferences.size())
// 2019-04-26: If you get this error, it could be that you are using OpenPDF or
// another library such as flying-saucer's ITextRenderer in a non-threadsafe way.
// ITextRenderer is not thread safe. So if you get this problem here, create a new
// instance, rather than re-using it.
// See: https://github.com/LibrePDF/OpenPDF/issues/164
throw new RuntimeException("The page " + pageReferences.size() +
" was requested but the document has only " + (currentPageNumber - 1) + " pages.");
try {
addSharedObjectsToBody();
// add the root to the body
PdfIndirectReference rootRef = root.writePageTree();
// make the catalog-object and add it to the body
PdfDictionary catalog = getCatalog(rootRef);
// [C9] if there is XMP data to add: add it
if (xmpMetadata != null) {
PdfStream xmp = new PdfStream(xmpMetadata);
xmp.put(PdfName.TYPE, PdfName.METADATA);
xmp.put(PdfName.SUBTYPE, PdfName.XML);
if (crypto != null && !crypto.isMetadataEncrypted()) {
PdfArray ar = new PdfArray();
ar.add(PdfName.CRYPT);
xmp.put(PdfName.FILTER, ar);
}
catalog.put(PdfName.METADATA, body.add(xmp).getIndirectReference());
}
// [C10] make pdfx conformant
if (isPdfX()) {
pdfxConformance.completeInfoDictionary(getInfo());
pdfxConformance.completeExtraCatalog(getExtraCatalog());
}
// [C11] Output Intents
if (extraCatalog != null) {
catalog.mergeDifferent(extraCatalog);
}
writeOutlines(catalog, false);
// add the Catalog to the body
PdfIndirectObject indirectCatalog = addToBody(catalog, false);
// add the info-object to the body
PdfIndirectObject infoObj = addToBody(getInfo(), false);
// [F1] encryption
PdfIndirectReference encryption = null;
PdfObject fileID = null;
body.flushObjStm();
if (crypto != null) {
PdfIndirectObject encryptionObject = addToBody(crypto.getEncryptionDictionary(), false);
encryption = encryptionObject.getIndirectReference();
fileID = crypto.getFileID();
} else if (getInfo().contains(PdfName.FILEID)) {
fileID = getInfo().get(PdfName.FILEID);
} else {
// the same documentId shall be provided to the first version
byte[] documentId = PdfEncryption.createDocumentId();
fileID = PdfEncryption.createInfoId(documentId, documentId);
}
// write the cross-reference table of the body
body.writeCrossReferenceTable(os, indirectCatalog.getIndirectReference(),
infoObj.getIndirectReference(), encryption, fileID, prevxref);
os.write(getISOBytes("startxref\n"));
os.write(getISOBytes(String.valueOf(body.offset())));
os.write(getISOBytes("\n%%EOF\n"));
super.close();
}
catch(IOException ioe) {
throw new ExceptionConverter(ioe);
}
}
}
protected void addSharedObjectsToBody() throws IOException {
// [F3] add the fonts
for (FontDetails details : documentFonts.values()) {
details.writeFont(this);
}
// [F4] add the form XObjects
for (Object[] objs : formXObjects.values()) {
PdfTemplate template = (PdfTemplate) objs[1];
if (template != null && template.getIndirectReference() instanceof PRIndirectReference)
continue;
if (template != null && template.getType() == PdfTemplate.TYPE_TEMPLATE) {
addToBody(template.getFormXObject(compressionLevel), template.getIndirectReference());
}
}
// [F5] add all the dependencies in the imported pages
for (PdfReaderInstance pdfReaderInstance : importedPages.values()) {
currentPdfReaderInstance = pdfReaderInstance;
currentPdfReaderInstance.writeAllPages();
}
currentPdfReaderInstance = null;
// [F6] add the spotcolors
for (ColorDetails color : documentColors.values()) {
addToBody(color.getSpotColor(this), color.getIndirectReference());
}
// [F7] add the pattern
for (PdfPatternPainter pat : documentPatterns.keySet()) {
addToBody(pat.getPattern(compressionLevel), pat.getIndirectReference());
}
// [F8] add the shading patterns
for (PdfShadingPattern shadingPattern : documentShadingPatterns.keySet()) {
shadingPattern.addToBody();
}
// [F9] add the shadings
for (PdfShading shading : documentShadings.keySet()) {
shading.addToBody();
}
// [F10] add the extgstate
for (Map.Entry entry : documentExtGState.entrySet()) {
PdfDictionary gstate = entry.getKey();
PdfObject[] obj = entry.getValue();
addToBody(gstate, (PdfIndirectReference) obj[1]);
}
// [F11] add the properties
for (Map.Entry entry : documentProperties.entrySet()) {
Object prop = entry.getKey();
PdfObject[] obj = entry.getValue();
if (prop instanceof PdfLayerMembership) {
PdfLayerMembership layer = (PdfLayerMembership) prop;
addToBody(layer.getPdfObject(), layer.getRef());
} else if ((prop instanceof PdfDictionary) && !(prop instanceof PdfLayer)) {
addToBody((PdfDictionary) prop, (PdfIndirectReference) obj[1]);
}
}
// [F13] add the OCG layers
for (PdfOCG layer : documentOCG) {
addToBody(layer.getPdfObject(), layer.getRef());
}
}
// Root data for the PDF document (used when composing the Catalog)
// [C1] Outlines (bookmarks)
/**
* Use this method to get the root outline
* and construct bookmarks.
* @return the root outline
*/
public PdfOutline getRootOutline() {
return directContent.getRootOutline();
}
protected List newBookmarks;
/**
* Sets the bookmarks. The list structure is defined in
* {@link SimpleBookmark}.
* @param outlines the bookmarks or null to remove any
*/
public void setOutlines(List outlines) {
newBookmarks = outlines;
}
protected void writeOutlines(PdfDictionary catalog, boolean namedAsNames) throws IOException {
if (newBookmarks == null || newBookmarks.isEmpty())
return;
PdfDictionary top = new PdfDictionary();
PdfIndirectReference topRef = getPdfIndirectReference();
Object[] kids = SimpleBookmark.iterateOutlines(this, topRef, newBookmarks, namedAsNames);
top.put(PdfName.FIRST, (PdfIndirectReference)kids[0]);
top.put(PdfName.LAST, (PdfIndirectReference)kids[1]);
top.put(PdfName.COUNT, new PdfNumber((Integer) kids[2]));
addToBody(top, topRef);
catalog.put(PdfName.OUTLINES, topRef);
}
// [C2] PdfVersion interface
/** possible PDF version (header) */
public static final char VERSION_1_2 = '2';
/** possible PDF version (header) */
public static final char VERSION_1_3 = '3';
/** possible PDF version (header) */
public static final char VERSION_1_4 = '4';
/** possible PDF version (header) */
public static final char VERSION_1_5 = '5';
/** possible PDF version (header) */
public static final char VERSION_1_6 = '6';
/** possible PDF version (header) */
public static final char VERSION_1_7 = '7';
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_2 = new PdfName("1.2");
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_3 = new PdfName("1.3");
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_4 = new PdfName("1.4");
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_5 = new PdfName("1.5");
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_6 = new PdfName("1.6");
/** possible PDF version (catalog) */
public static final PdfName PDF_VERSION_1_7 = new PdfName("1.7");
/** Stores the version information for the header and the catalog. */
protected PdfVersionImp pdf_version = new PdfVersionImp();
/** @see com.lowagie.text.pdf.interfaces.PdfVersion#setPdfVersion(char) */
public void setPdfVersion(char version) {
pdf_version.setPdfVersion(version);
}
/** @see com.lowagie.text.pdf.interfaces.PdfVersion#setAtLeastPdfVersion(char) */
public void setAtLeastPdfVersion(char version) {
pdf_version.setAtLeastPdfVersion(version);
}
/** @see com.lowagie.text.pdf.interfaces.PdfVersion#setPdfVersion(com.lowagie.text.pdf.PdfName) */
public void setPdfVersion(PdfName version) {
pdf_version.setPdfVersion(version);
}
/**
* @see com.lowagie.text.pdf.interfaces.PdfVersion#addDeveloperExtension(com.lowagie.text.pdf.PdfDeveloperExtension)
* @since 2.1.6
*/
public void addDeveloperExtension(PdfDeveloperExtension de) {
pdf_version.addDeveloperExtension(de);
}
/**
* Returns the version information.
*/
PdfVersionImp getPdfVersion() {
return pdf_version;
}
// [C3] PdfViewerPreferences interface
// page layout (section 13.1.1 of "iText in Action")
/** A viewer preference */
public static final int PageLayoutSinglePage = 1;
/** A viewer preference */
public static final int PageLayoutOneColumn = 2;
/** A viewer preference */
public static final int PageLayoutTwoColumnLeft = 4;
/** A viewer preference */
public static final int PageLayoutTwoColumnRight = 8;
/** A viewer preference */
public static final int PageLayoutTwoPageLeft = 16;
/** A viewer preference */
public static final int PageLayoutTwoPageRight = 32;
// page mode (section 13.1.2 of "iText in Action")
/** A viewer preference */
public static final int PageModeUseNone = 64;
/** A viewer preference */
public static final int PageModeUseOutlines = 128;
/** A viewer preference */
public static final int PageModeUseThumbs = 256;
/** A viewer preference */
public static final int PageModeFullScreen = 512;
/** A viewer preference */
public static final int PageModeUseOC = 1024;
/** A viewer preference */
public static final int PageModeUseAttachments = 2048;
// values for setting viewer preferences in iText versions older than 2.x
/** A viewer preference */
public static final int HideToolbar = 1 << 12;
/** A viewer preference */
public static final int HideMenubar = 1 << 13;
/** A viewer preference */
public static final int HideWindowUI = 1 << 14;
/** A viewer preference */
public static final int FitWindow = 1 << 15;
/** A viewer preference */
public static final int CenterWindow = 1 << 16;
/** A viewer preference */
public static final int DisplayDocTitle = 1 << 17;
/** A viewer preference */
public static final int NonFullScreenPageModeUseNone = 1 << 18;
/** A viewer preference */
public static final int NonFullScreenPageModeUseOutlines = 1 << 19;
/** A viewer preference */
public static final int NonFullScreenPageModeUseThumbs = 1 << 20;
/** A viewer preference */
public static final int NonFullScreenPageModeUseOC = 1 << 21;
/** A viewer preference */
public static final int DirectionL2R = 1 << 22;
/** A viewer preference */
public static final int DirectionR2L = 1 << 23;
/** A viewer preference */
public static final int PrintScalingNone = 1 << 24;
/** @see com.lowagie.text.pdf.interfaces.PdfViewerPreferences#setViewerPreferences(int) */
public void setViewerPreferences(int preferences) {
pdf.setViewerPreferences(preferences);
}
/** @see com.lowagie.text.pdf.interfaces.PdfViewerPreferences#addViewerPreference(com.lowagie.text.pdf.PdfName, com.lowagie.text.pdf.PdfObject) */
public void addViewerPreference(PdfName key, PdfObject value) {
pdf.addViewerPreference(key, value);
}
// [C4] Page labels
/**
* Use this method to add page labels
* @param pageLabels the page labels
*/
public void setPageLabels(PdfPageLabels pageLabels) {
pdf.setPageLabels(pageLabels);
}
// [C5] named objects: named destinations, javascript, embedded files
/**
* Adds named destinations in bulk.
* Valid keys and values of the map can be found in the map
* that is created by SimpleNamedDestination.
* @param map a map with strings as keys for the names,
* and structured strings as values for the destinations
* @param page_offset number of pages that has to be added to
* the page numbers in the destinations (useful if you
* use this method in combination with PdfCopy).
* @since iText 5.0
*/
public void addNamedDestinations(Map map, int page_offset) {
Map.Entry entry;
int page;
String dest;
PdfDestination destination;
for (Map.Entry stringStringEntry : map.entrySet()) {
entry = stringStringEntry;
dest = entry.getValue();
page = Integer.parseInt(dest.substring(0, dest.indexOf(" ")));
destination = new PdfDestination(dest.substring(dest.indexOf(" ") + 1));
addNamedDestination(entry.getKey(), page + page_offset, destination);
}
}
/**
* Adds one named destination.
* @param name the name for the destination
* @param page the page number where you want to jump to
* @param dest an explicit destination
* @since iText 5.0
*/
public void addNamedDestination(String name, int page, PdfDestination dest) {
dest.addPage(getPageReference(page));
pdf.localDestination(name, dest);
}
/**
* Use this method to add a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param js The JavaScript action
*/
public void addJavaScript(PdfAction js) {
pdf.addJavaScript(js);
}
/**
* Use this method to add a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param code the JavaScript code
* @param unicode select JavaScript unicode. Note that the internal
* Acrobat JavaScript engine does not support unicode,
* so this may or may not work for you
*/
public void addJavaScript(String code, boolean unicode) {
addJavaScript(PdfAction.javaScript(code, this, unicode));
}
/**
* Use this method to adds a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param code the JavaScript code
*/
public void addJavaScript(String code) {
addJavaScript(code, false);
}
/**
* Use this method to add a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param name The name of the JS Action in the name tree
* @param js The JavaScript action
*/
public void addJavaScript(String name, PdfAction js) {
pdf.addJavaScript(name, js);
}
/**
* Use this method to add a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param name The name of the JS Action in the name tree
* @param code the JavaScript code
* @param unicode select JavaScript unicode. Note that the internal
* Acrobat JavaScript engine does not support unicode,
* so this may or may not work for you
*/
public void addJavaScript(String name, String code, boolean unicode) {
addJavaScript(name, PdfAction.javaScript(code, this, unicode));
}
/**
* Use this method to adds a JavaScript action at the document level.
* When the document opens, all this JavaScript runs.
* @param name The name of the JS Action in the name tree
* @param code the JavaScript code
*/
public void addJavaScript(String name, String code) {
addJavaScript(name, code, false);
}
/**
* Use this method to add a file attachment at the document level.
* @param description the file description
* @param fileStore an array with the file. If it's null
* the file will be read from the disk
* @param file the path to the file. It will only be used if
* fileStore is not null
* @param fileDisplay the actual file name stored in the pdf
* @throws IOException on error
*/
public void addFileAttachment(String description, byte[] fileStore, String file, String fileDisplay) throws IOException {
addFileAttachment(description, PdfFileSpecification.fileEmbedded(this, file, fileDisplay, fileStore));
}
/**
* Use this method to add a file attachment at the document level.
* @param description the file description
* @param fs the file specification
* @throws IOException thrown when an I/O operation fails
*/
public void addFileAttachment(String description, PdfFileSpecification fs) throws IOException {
pdf.addFileAttachment(description, fs);
}
/**
* Use this method to add a file attachment at the document level.
* @param fs the file specification
* @throws IOException thrown when an I/O operation fails
*/
public void addFileAttachment(PdfFileSpecification fs) throws IOException {
addFileAttachment(null, fs);
}
// [C6] Actions (open and additional)
/** action value */
public static final PdfName DOCUMENT_CLOSE = PdfName.WC;
/** action value */
public static final PdfName WILL_SAVE = PdfName.WS;
/** action value */
public static final PdfName DID_SAVE = PdfName.DS;
/** action value */
public static final PdfName WILL_PRINT = PdfName.WP;
/** action value */
public static final PdfName DID_PRINT = PdfName.DP;
/** @see com.lowagie.text.pdf.interfaces.PdfDocumentActions#setOpenAction(java.lang.String) */
public void setOpenAction(String name) {
pdf.setOpenAction(name);
}
/** @see com.lowagie.text.pdf.interfaces.PdfDocumentActions#setOpenAction(com.lowagie.text.pdf.PdfAction) */
public void setOpenAction(PdfAction action) {
pdf.setOpenAction(action);
}
/** @see com.lowagie.text.pdf.interfaces.PdfDocumentActions#setAdditionalAction(com.lowagie.text.pdf.PdfName, com.lowagie.text.pdf.PdfAction) */
public void setAdditionalAction(PdfName actionType, PdfAction action) throws DocumentException {
if (!(actionType.equals(DOCUMENT_CLOSE) ||
actionType.equals(WILL_SAVE) ||
actionType.equals(DID_SAVE) ||
actionType.equals(WILL_PRINT) ||
actionType.equals(DID_PRINT))) {
throw new DocumentException(MessageLocalization.getComposedMessage("invalid.additional.action.type.1", actionType.toString()));
}
pdf.addAdditionalAction(actionType, action);
}
// [C7] portable collections
/**
* Use this method to add the Collection dictionary.
* @param collection a dictionary of type PdfCollection
*/
public void setCollection(PdfCollection collection) {
setAtLeastPdfVersion(VERSION_1_7);
pdf.setCollection(collection);
}
// [C8] AcroForm
/** signature value */
public static final int SIGNATURE_EXISTS = 1;
/** signature value */
public static final int SIGNATURE_APPEND_ONLY = 2;
/** @see com.lowagie.text.pdf.interfaces.PdfAnnotations#getAcroForm() */
public PdfAcroForm getAcroForm() {
return pdf.getAcroForm();
}
/** @see com.lowagie.text.pdf.interfaces.PdfAnnotations#addAnnotation(com.lowagie.text.pdf.PdfAnnotation) */
public void addAnnotation(PdfAnnotation annot) {
pdf.addAnnotation(annot);
}
void addAnnotation(PdfAnnotation annot, int page) {
addAnnotation(annot);
}
/** @see com.lowagie.text.pdf.interfaces.PdfAnnotations#addCalculationOrder(com.lowagie.text.pdf.PdfFormField) */
public void addCalculationOrder(PdfFormField annot) {
pdf.addCalculationOrder(annot);
}
/** @see com.lowagie.text.pdf.interfaces.PdfAnnotations#setSigFlags(int) */
public void setSigFlags(int f) {
pdf.setSigFlags(f);
}
// [C9] Metadata
/** XMP Metadata for the document. */
protected byte[] xmpMetadata = null;
/**
* Use this method to set the XMP Metadata.
* @param xmpMetadata The xmpMetadata to set.
*/
public void setXmpMetadata(byte[] xmpMetadata) {
this.xmpMetadata = xmpMetadata;
}
/**
* Use this method to set the XMP Metadata for each page.
* @param xmpMetadata The xmpMetadata to set.
*/
public void setPageXmpMetadata(byte[] xmpMetadata) {
pdf.setXmpMetadata(xmpMetadata);
}
/**
* Use this method to creates XMP Metadata based
* on the metadata in the PdfDocument.
*/
public void createXmpMetadata() {
setXmpMetadata(createXmpMetadataBytes());
}
/**
* @return an XmpMetadata byte array
*/
private byte[] createXmpMetadataBytes() {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
XmpWriter xmp = new XmpWriter(baos, pdf.getInfo(), pdfxConformance.getPDFXConformance());
xmp.close();
}
catch (IOException ioe) {
ioe.printStackTrace();
}
return baos.toByteArray();
}
// [C10] PDFX Conformance
/** A PDF/X level. */
public static final int PDFXNONE = 0;
/** A PDF/X level. */
public static final int PDFX1A2001 = 1;
/** A PDF/X level. */
public static final int PDFX32002 = 2;
/** PDFA-1A level. */
public static final int PDFA1A = 3;
/** PDFA-1B level. */
public static final int PDFA1B = 4;
/** Stores the PDF/X level. */
private PdfXConformanceImp pdfxConformance = new PdfXConformanceImp();
/** @see com.lowagie.text.pdf.interfaces.PdfXConformance#setPDFXConformance(int) */
public void setPDFXConformance(int pdfx) {
if (pdfxConformance.getPDFXConformance() == pdfx)
return;
if (pdf.isOpen())
throw new PdfXConformanceException(MessageLocalization.getComposedMessage("pdfx.conformance.can.only.be.set.before.opening.the.document"));
if (crypto != null)
throw new PdfXConformanceException(MessageLocalization.getComposedMessage("a.pdfx.conforming.document.cannot.be.encrypted"));
if (pdfx == PDFA1A || pdfx == PDFA1B)
setPdfVersion(VERSION_1_4);
else if (pdfx != PDFXNONE)
setPdfVersion(VERSION_1_3);
pdfxConformance.setPDFXConformance(pdfx);
}
/** @see com.lowagie.text.pdf.interfaces.PdfXConformance#getPDFXConformance() */
public int getPDFXConformance() {
return pdfxConformance.getPDFXConformance();
}
/** @see com.lowagie.text.pdf.interfaces.PdfXConformance#isPdfX() */
public boolean isPdfX() {
return pdfxConformance.isPdfX();
}
// [C11] Output intents
/**
* Sets the values of the output intent dictionary. Null values are allowed to
* suppress any key.
*
* @param outputConditionIdentifier a value
* @param outputCondition a value, "PDFA/A" to force GTS_PDFA1, otherwise cued by pdfxConformance.
* @param registryName a value
* @param info a value
* @param colorProfile a value
* @since 2.1.5
* @throws IOException on error
*/
public void setOutputIntents(String outputConditionIdentifier, String outputCondition, String registryName, String info, ICC_Profile colorProfile) throws IOException {
getExtraCatalog();
PdfDictionary out = new PdfDictionary(PdfName.OUTPUTINTENT);
if (outputCondition != null)
out.put(PdfName.OUTPUTCONDITION, new PdfString(outputCondition, PdfObject.TEXT_UNICODE));
if (outputConditionIdentifier != null)
out.put(PdfName.OUTPUTCONDITIONIDENTIFIER, new PdfString(outputConditionIdentifier, PdfObject.TEXT_UNICODE));
if (registryName != null)
out.put(PdfName.REGISTRYNAME, new PdfString(registryName, PdfObject.TEXT_UNICODE));
if (info != null)
out.put(PdfName.INFO, new PdfString(info, PdfObject.TEXT_UNICODE));
if (colorProfile != null) {
PdfStream stream = new PdfICCBased(colorProfile, compressionLevel);
out.put(PdfName.DESTOUTPUTPROFILE, addToBody(stream).getIndirectReference());
}
PdfName intentSubtype;
if (pdfxConformance.isPdfA1() || "PDFA/1".equals(outputCondition)) {
intentSubtype = PdfName.GTS_PDFA1;
}
else {
intentSubtype = PdfName.GTS_PDFX;
}
out.put(PdfName.S, intentSubtype);
extraCatalog.put(PdfName.OUTPUTINTENTS, new PdfArray(out));
}
/**
* Sets the values of the output intent dictionary. Null values are allowed to
* suppress any key.
*
* Prefer the ICC_Profile-based version of this method.
* @param outputConditionIdentifier a value
* @param outputCondition a value, "PDFA/A" to force GTS_PDFA1, otherwise cued by pdfxConformance.
* @param registryName a value
* @param info a value
* @param destOutputProfile a value
* @since 1.x
*
* @throws IOException on error
*/
public void setOutputIntents(String outputConditionIdentifier, String outputCondition, String registryName, String info, byte[] destOutputProfile) throws IOException {
ICC_Profile colorProfile = (destOutputProfile == null) ? null : ICC_Profile.getInstance(destOutputProfile);
setOutputIntents(outputConditionIdentifier, outputCondition, registryName, info, colorProfile);
}
/**
* Use this method to copy the output intent dictionary
* from another document to this one.
* @param reader the other document
* @param checkExistence true to just check for the existence of a valid output intent
* dictionary, false to insert the dictionary if it exists
* @throws IOException on error
* @return true if the output intent dictionary exists, false
* otherwise
*/
public boolean setOutputIntents(PdfReader reader, boolean checkExistence) throws IOException {
PdfDictionary catalog = reader.getCatalog();
PdfArray outs = catalog.getAsArray(PdfName.OUTPUTINTENTS);
if (outs == null)
return false;
if (outs.isEmpty())
return false;
PdfDictionary out = outs.getAsDict(0);
PdfObject obj = PdfReader.getPdfObject(out.get(PdfName.S));
if (!PdfName.GTS_PDFX.equals(obj))
return false;
if (checkExistence)
return true;
PRStream stream = (PRStream)PdfReader.getPdfObject(out.get(PdfName.DESTOUTPUTPROFILE));
byte[] destProfile = null;
if (stream != null) {
destProfile = PdfReader.getStreamBytes(stream);
}
setOutputIntents(getNameString(out, PdfName.OUTPUTCONDITIONIDENTIFIER), getNameString(out, PdfName.OUTPUTCONDITION),
getNameString(out, PdfName.REGISTRYNAME), getNameString(out, PdfName.INFO), destProfile);
return true;
}
private static String getNameString(PdfDictionary dic, PdfName key) {
PdfObject obj = PdfReader.getPdfObject(dic.get(key));
if (obj == null || !obj.isString())
return null;
return ((PdfString)obj).toUnicodeString();
}
// PDF Objects that have an impact on the PDF body
// [F1] PdfEncryptionSettings interface
// types of encryption
/** No encryption */
public static final int ENCRYPTION_NONE = -1;
/** Type of encryption */
public static final int STANDARD_ENCRYPTION_40 = 0;
/** Type of encryption */
public static final int STANDARD_ENCRYPTION_128 = 1;
/** Type of encryption */
public static final int ENCRYPTION_AES_128 = 2;
// ENCRYPTION_* = 3 reserved for implementation of the
// meanwhile deprecated proprietary AES256 variant by Adobe
/** Type of encryption */
public static final int ENCRYPTION_AES_256_V3 = 4;
/** Mask to separate the encryption type from the encryption mode. */
static final int ENCRYPTION_MASK = 7;
/** Add this to the mode to keep the metadata in clear text */
public static final int DO_NOT_ENCRYPT_METADATA = 8;
/**
* Add this to the mode to keep encrypt only the embedded files.
* @since 2.1.3
*/
public static final int EMBEDDED_FILES_ONLY = 24;
// permissions
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_PRINTING = 4 + 2048;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_MODIFY_CONTENTS = 8;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_COPY = 16;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_MODIFY_ANNOTATIONS = 32;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_FILL_IN = 256;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_SCREENREADERS = 512;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_ASSEMBLY = 1024;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
public static final int ALLOW_DEGRADED_PRINTING = 4;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_PRINTING} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowPrinting = ALLOW_PRINTING;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_MODIFY_CONTENTS} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowModifyContents = ALLOW_MODIFY_CONTENTS;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_COPY} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowCopy = ALLOW_COPY;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_MODIFY_ANNOTATIONS} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowModifyAnnotations = ALLOW_MODIFY_ANNOTATIONS;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_FILL_IN} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowFillIn = ALLOW_FILL_IN;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_SCREENREADERS} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowScreenReaders = ALLOW_SCREENREADERS;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_ASSEMBLY} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowAssembly = ALLOW_ASSEMBLY;
/** @deprecated As of iText 2.0.7, use {@link #ALLOW_DEGRADED_PRINTING} instead. Scheduled for removal at or after 2.2.0 */
public static final int AllowDegradedPrinting = ALLOW_DEGRADED_PRINTING;
// Strength of the encryption (kept for historical reasons)
/** @deprecated As of iText 2.0.7, use {@link #STANDARD_ENCRYPTION_40} instead. Scheduled for removal at or after 2.2.0 */
public static final boolean STRENGTH40BITS = false;
/** @deprecated As of iText 2.0.7, use {@link #STANDARD_ENCRYPTION_128} instead. Scheduled for removal at or after 2.2.0 */
public static final boolean STRENGTH128BITS = true;
/** Contains the business logic for cryptography. */
protected PdfEncryption crypto;
PdfEncryption getEncryption() {
return crypto;
}
/** @see com.lowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(byte[], byte[], int, int) */
public void setEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionType) throws DocumentException {
if (pdf.isOpen())
throw new DocumentException(MessageLocalization.getComposedMessage("encryption.can.only.be.added.before.opening.the.document"));
crypto = new PdfEncryption();
crypto.setCryptoMode(encryptionType, 0);
crypto.setupAllKeys(userPassword, ownerPassword, permissions);
}
/** @see com.lowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(java.security.cert.Certificate[], int[], int) */
public void setEncryption(Certificate[] certs, int[] permissions, int encryptionType) throws DocumentException {
if (pdf.isOpen())
throw new DocumentException(MessageLocalization.getComposedMessage("encryption.can.only.be.added.before.opening.the.document"));
crypto = new PdfEncryption();
if (certs != null) {
for (int i=0; i < certs.length; i++) {
crypto.addRecipient(certs[i], permissions[i]);
}
}
crypto.setCryptoMode(encryptionType, 0);
crypto.getEncryptionDictionary();
}
/**
* Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @param strength128Bits true for 128 bit key length, false for 40 bit key length
* @throws DocumentException if the document is already open
* @deprecated As of iText 2.0.3, replaced by (@link #setEncryption(byte[], byte[], int, int)}. Scheduled for removal at or after 2.2.0
*/
public void setEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, boolean strength128Bits) throws DocumentException {
setEncryption(userPassword, ownerPassword, permissions, strength128Bits ? STANDARD_ENCRYPTION_128 : STANDARD_ENCRYPTION_40);
}
/**
* Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param strength true for 128 bit key length, false for 40 bit key length
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @throws DocumentException if the document is already open
* @deprecated As of iText 2.0.3, replaced by (@link #setEncryption(byte[], byte[], int, int)}. Scheduled for removal at or after 2.2.0
*/
public void setEncryption(boolean strength, String userPassword, String ownerPassword, int permissions) throws DocumentException {
setEncryption(getISOBytes(userPassword), getISOBytes(ownerPassword), permissions, strength ? STANDARD_ENCRYPTION_128 : STANDARD_ENCRYPTION_40);
}
/**
* Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
* Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @throws DocumentException if the document is already open
* @deprecated As of iText 2.0.3, replaced by (@link #setEncryption(byte[], byte[], int, int)}. Scheduled for removal at or after 2.2.0
*/
public void setEncryption(int encryptionType, String userPassword, String ownerPassword, int permissions) throws DocumentException {
setEncryption(getISOBytes(userPassword), getISOBytes(ownerPassword), permissions, encryptionType);
}
// [F2] compression
/** Holds value of property fullCompression. */
protected boolean fullCompression = false;
/**
* Use this method to find out if 1.5 compression is on.
* @return the 1.5 compression status
*/
public boolean isFullCompression() {
return this.fullCompression;
}
/**
* Use this method to set the document's compression to the
* PDF 1.5 mode with object streams and xref streams.
* It can be set at any time but once set it can't be unset.
*
* If set before opening the document it will also set the pdf version to 1.5.
*/
public void setFullCompression() {
this.fullCompression = true;
setAtLeastPdfVersion(VERSION_1_5);
}
/**
* The compression level of the content streams.
* @since 2.1.3
*/
protected int compressionLevel = PdfStream.DEFAULT_COMPRESSION;
/**
* Returns the compression level used for streams written by this writer.
* @return the compression level (0 = best speed, 9 = best compression, -1 is default)
* @since 2.1.3
*/
public int getCompressionLevel() {
return compressionLevel;
}
/**
* Sets the compression level to be used for streams written by this writer.
* @param compressionLevel a value between 0 (best speed) and 9 (best compression)
* @since 2.1.3
*/
public void setCompressionLevel(int compressionLevel) {
if (compressionLevel < PdfStream.NO_COMPRESSION || compressionLevel > PdfStream.BEST_COMPRESSION)
this.compressionLevel = PdfStream.DEFAULT_COMPRESSION;
else
this.compressionLevel = compressionLevel;
}
// [F3] adding fonts
/** The fonts of this document */
protected LinkedHashMap documentFonts = new LinkedHashMap<>();
/** The font number counter for the fonts in the document. */
protected int fontNumber = 1;
/**
* Adds a BaseFont to the document but not to the page resources.
* It is used for templates.
* @param bf the BaseFont to add
* @return an Object[] where position 0 is a PdfName
* and position 1 is an PdfIndirectReference
*/
FontDetails addSimple(BaseFont bf) {
if (bf.getFontType() == BaseFont.FONT_TYPE_DOCUMENT) {
return new FontDetails(new PdfName("F" + (fontNumber++)), ((DocumentFont)bf).getIndirectReference(), bf);
}
FontDetails ret = documentFonts.get(bf);
if (ret == null) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_FONT, bf);
ret = new FontDetails(new PdfName("F" + (fontNumber++)), body.getPdfIndirectReference(), bf);
documentFonts.put(bf, ret);
}
return ret;
}
void eliminateFontSubset(PdfDictionary fonts) {
for (FontDetails ft : documentFonts.values()) {
if (fonts.get(ft.getFontName()) != null)
ft.setSubset(false);
}
}
// [F4] adding (and releasing) form XObjects
/** The form XObjects in this document. The key is the xref and the value
is Object[]{PdfName, template}.*/
protected LinkedHashMap formXObjects = new LinkedHashMap<>();
/** The name counter for the form XObjects name. */
protected int formXObjectsCounter = 1;
/**
* Adds a template to the document but not to the page resources.
* @param template the template to add
* @param forcedName the template name, rather than a generated one. Can be null
* @return the PdfName for this template
*/
PdfName addDirectTemplateSimple(PdfTemplate template, PdfName forcedName) {
PdfIndirectReference ref = template.getIndirectReference();
Object[] obj = formXObjects.get(ref);
PdfName name = null;
try {
if (obj == null) {
if (forcedName == null) {
name = new PdfName("Xf" + formXObjectsCounter);
++formXObjectsCounter;
}
else
name = forcedName;
if (template.getType() == PdfTemplate.TYPE_IMPORTED) {
// If we got here from PdfCopy we'll have to fill importedPages
PdfImportedPage ip = (PdfImportedPage)template;
PdfReader r = ip.getPdfReaderInstance().getReader();
if (!importedPages.containsKey(r)) {
importedPages.put(r, ip.getPdfReaderInstance());
}
template = null;
}
formXObjects.put(ref, new Object[]{name, template});
}
else
name = (PdfName)obj[0];
}
catch (Exception e) {
throw new ExceptionConverter(e);
}
return name;
}
/**
* Use this method to releases the memory used by a template.
* This method writes the template to the output.
* The template can still be added to any content
* but changes to the template itself won't have any effect.
* @param tp the template to release
* @throws IOException on error
*/
public void releaseTemplate(PdfTemplate tp) throws IOException {
PdfIndirectReference ref = tp.getIndirectReference();
Object[] objs = formXObjects.get(ref);
if (objs == null || objs[1] == null)
return;
PdfTemplate template = (PdfTemplate)objs[1];
if (template.getIndirectReference() instanceof PRIndirectReference)
return;
if (template.getType() == PdfTemplate.TYPE_TEMPLATE) {
addToBody(template.getFormXObject(compressionLevel), template.getIndirectReference());
objs[1] = null;
}
}
// [F5] adding pages imported form other PDF documents
protected HashMap importedPages = new HashMap<>();
/**
* Use this method to get a page from other PDF document.
* The page can be used as any other PdfTemplate.
* Note that calling this method more than once with the same parameters
* will retrieve the same object.
* @param reader the PDF document where the page is
* @param pageNumber the page number. The first page is 1
* @return the template representing the imported page
*/
public PdfImportedPage getImportedPage(PdfReader reader, int pageNumber) {
PdfReaderInstance inst = importedPages.get(reader);
if (inst == null) {
inst = reader.getPdfReaderInstance(this);
importedPages.put(reader, inst);
}
return inst.getImportedPage(pageNumber);
}
/**
* Use this method to writes the reader to the document
* and free the memory used by it.
* The main use is when concatenating multiple documents
* to keep the memory usage restricted to the current
* appending document.
* @param reader the PdfReader to free
* @throws IOException on error
*/
public void freeReader(PdfReader reader) throws IOException {
currentPdfReaderInstance = importedPages.get(reader);
if (currentPdfReaderInstance == null)
return;
currentPdfReaderInstance.writeAllPages();
currentPdfReaderInstance = null;
importedPages.remove(reader);
}
/**
* Use this method to gets the current document size.
* This size only includes the data already written
* to the output stream, it does not include templates or fonts.
* It is useful if used with freeReader()
* when concatenating many documents and an idea of
* the current size is needed.
* @return the approximate size without fonts or templates
*/
public long getCurrentDocumentSize() {
return body.offset() + (long)body.size() * 20L + 0x48;
}
protected PdfReaderInstance currentPdfReaderInstance;
protected int getNewObjectNumber(PdfReader reader, int number, int generation) {
if (currentPdfReaderInstance == null && importedPages.get(reader) == null) {
importedPages.put(reader, reader.getPdfReaderInstance(this));
}
currentPdfReaderInstance = importedPages.get(reader);
int n = currentPdfReaderInstance.getNewObjectNumber(number, generation);
currentPdfReaderInstance = null;
return n;
}
RandomAccessFileOrArray getReaderFile(PdfReader reader) {
return currentPdfReaderInstance.getReaderFile();
}
// [F6] spot colors
/** The colors of this document */
protected HashMap documentColors = new HashMap<>();
/** The color number counter for the colors in the document. */
protected int colorNumber = 1;
PdfName getColorspaceName() {
return new PdfName("CS" + (colorNumber++));
}
/**
* Adds a SpotColor to the document but not to the page resources.
* @param spc the SpotColor to add
* @return an Object[] where position 0 is a PdfName
* and position 1 is an PdfIndirectReference
*/
ColorDetails addSimple(PdfSpotColor spc) {
ColorDetails ret = documentColors.get(spc);
if (ret == null) {
ret = new ColorDetails(getColorspaceName(), body.getPdfIndirectReference(), spc);
documentColors.put(spc, ret);
}
return ret;
}
// [F7] document patterns
/** The patterns of this document */
protected HashMap documentPatterns = new HashMap<>();
/** The pattern number counter for the colors in the document. */
protected int patternNumber = 1;
PdfName addSimplePattern(PdfPatternPainter painter) {
PdfName name = documentPatterns.get(painter);
try {
if ( name == null ) {
name = new PdfName("P" + patternNumber);
++patternNumber;
documentPatterns.put(painter, name);
}
} catch (Exception e) {
throw new ExceptionConverter(e);
}
return name;
}
// [F8] shading patterns
protected HashMap documentShadingPatterns = new HashMap<>();
void addSimpleShadingPattern(PdfShadingPattern shading) {
if (!documentShadingPatterns.containsKey(shading)) {
shading.setName(patternNumber);
++patternNumber;
documentShadingPatterns.put(shading, null);
addSimpleShading(shading.getShading());
}
}
// [F9] document shadings
protected HashMap documentShadings = new HashMap<>();
void addSimpleShading(PdfShading shading) {
if (!documentShadings.containsKey(shading)) {
documentShadings.put(shading, null);
shading.setName(documentShadings.size());
}
}
// [F10] extended graphics state (for instance for transparency)
protected HashMap documentExtGState = new LinkedHashMap<>();
PdfObject[] addSimpleExtGState(PdfDictionary gstate) {
if (!documentExtGState.containsKey(gstate)) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_GSTATE, gstate);
documentExtGState.put(gstate, new PdfObject[]{new PdfName("GS" + (documentExtGState.size() + 1)), getPdfIndirectReference()});
}
return documentExtGState.get(gstate);
}
// [F11] adding properties (OCG, marked content)
protected HashMap documentProperties = new HashMap<>();
PdfObject[] addSimpleProperty(Object prop, PdfIndirectReference refi) {
if (!documentProperties.containsKey(prop)) {
if (prop instanceof PdfOCG)
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_LAYER, null);
documentProperties.put(prop, new PdfObject[]{new PdfName("Pr" + (documentProperties.size() + 1)), refi});
}
return documentProperties.get(prop);
}
boolean propertyExists(Object prop) {
return documentProperties.containsKey(prop);
}
// [F12] tagged PDF
protected boolean tagged = false;
protected PdfStructureTreeRoot structureTreeRoot;
/**
* Mark this document for tagging. It must be called before open.
*/
public void setTagged() {
if (open)
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("tagging.must.be.set.before.opening.the.document"));
tagged = true;
}
/**
* Check if the document is marked for tagging.
* @return true if the document is marked for tagging
*/
public boolean isTagged() {
return tagged;
}
/**
* Gets the structure tree root. If the document is not marked for tagging it will return null.
* @return the structure tree root
*/
public PdfStructureTreeRoot getStructureTreeRoot() {
if (tagged && structureTreeRoot == null)
structureTreeRoot = new PdfStructureTreeRoot(this);
return structureTreeRoot;
}
// [F13] Optional Content Groups
/** A hashSet containing all the PdfLayer objects. */
protected Set documentOCG = new HashSet<>();
/** An array list used to define the order of an OCG tree. */
protected List documentOCGorder = new ArrayList<>();
/** The OCProperties in a catalog dictionary. */
protected PdfOCProperties OCProperties;
/** The RBGroups array in an OCG dictionary */
protected PdfArray OCGRadioGroup = new PdfArray();
/**
* The locked array in an OCG dictionary
* @since 2.1.2
*/
protected PdfArray OCGLocked = new PdfArray();
/**
* Use this method to get the Optional Content Properties Dictionary.
* Each call fills the dictionary with the current layer state.
* It's advisable to only call this method right before close
* and do any modifications at that time.
* @return the Optional Content Properties Dictionary
*/
public PdfOCProperties getOCProperties() {
fillOCProperties(true);
return OCProperties;
}
/**
* Use this method to set a collection of optional content groups
* whose states are intended to follow a "radio button" paradigm.
* That is, the state of at most one optional content group
* in the array should be ON at a time: if one group is turned
* ON, all others must be turned OFF.
* @param group the radio group
*/
public void addOCGRadioGroup(List group) {
PdfArray ar = new PdfArray();
for (PdfLayer layer : group) {
if (layer.getTitle() == null)
ar.add(layer.getRef());
}
if (ar.size() == 0)
return;
OCGRadioGroup.add(ar);
}
/**
* Use this method to lock an optional content group.
* The state of a locked group cannot be changed through the user interface
* of a viewer application. Producers can use this entry to prevent the visibility
* of content that depends on these groups from being changed by users.
* @param layer the layer that needs to be added to the array of locked OCGs
* @since 2.1.2
*/
public void lockLayer(PdfLayer layer) {
OCGLocked.add(layer.getRef());
}
private static void getOCGOrder(PdfArray order, PdfLayer layer) {
if (!layer.isOnPanel())
return;
if (layer.getTitle() == null)
order.add(layer.getRef());
ArrayList children = layer.getChildren();
if (children == null)
return;
PdfArray kids = new PdfArray();
if (layer.getTitle() != null)
kids.add(new PdfString(layer.getTitle(), PdfObject.TEXT_UNICODE));
for (PdfLayer child : children) {
getOCGOrder(kids, child);
}
if (kids.size() > 0)
order.add(kids);
}
private void addASEvent(PdfName event, PdfName category) {
PdfArray arr = new PdfArray();
for (PdfOCG o : documentOCG) {
PdfLayer layer = (PdfLayer) o;
PdfDictionary usage = layer.getAsDict(PdfName.USAGE);
if (usage != null && usage.get(category) != null)
arr.add(layer.getRef());
}
if (arr.size() == 0)
return;
PdfDictionary d = (PdfDictionary)OCProperties.get(PdfName.D);
PdfArray arras = (PdfArray)d.get(PdfName.AS);
if (arras == null) {
arras = new PdfArray();
d.put(PdfName.AS, arras);
}
PdfDictionary as = new PdfDictionary();
as.put(PdfName.EVENT, event);
as.put(PdfName.CATEGORY, new PdfArray(category));
as.put(PdfName.OCGS, arr);
arras.add(as);
}
/**
* @since 2.1.2
* @param erase true to erase, false otherwise
*/
protected void fillOCProperties(boolean erase) {
if (OCProperties == null)
OCProperties = new PdfOCProperties();
if (erase) {
OCProperties.remove(PdfName.OCGS);
OCProperties.remove(PdfName.D);
}
if (OCProperties.get(PdfName.OCGS) == null) {
PdfArray gr = new PdfArray();
for (PdfOCG o : documentOCG) {
PdfLayer layer = (PdfLayer) o;
gr.add(layer.getRef());
}
OCProperties.put(PdfName.OCGS, gr);
}
if (OCProperties.get(PdfName.D) != null)
return;
List docOrder = documentOCGorder.stream()
.filter(pdfOCG -> ((PdfLayer)pdfOCG).getParent() == null)
.collect(Collectors.toList());
PdfArray order = new PdfArray();
for (PdfOCG o1 : docOrder) {
PdfLayer layer = (PdfLayer) o1;
getOCGOrder(order, layer);
}
PdfDictionary d = new PdfDictionary();
OCProperties.put(PdfName.D, d);
d.put(PdfName.ORDER, order);
PdfArray gr = new PdfArray();
for (PdfOCG o : documentOCG) {
PdfLayer layer = (PdfLayer) o;
if (!layer.isOn())
gr.add(layer.getRef());
}
if (gr.size() > 0)
d.put(PdfName.OFF, gr);
if (OCGRadioGroup != null && OCGRadioGroup.size() > 0)
d.put(PdfName.RBGROUPS, OCGRadioGroup);
if (OCGLocked != null && OCGLocked.size() > 0)
d.put(PdfName.LOCKED, OCGLocked);
addASEvent(PdfName.VIEW, PdfName.ZOOM);
addASEvent(PdfName.VIEW, PdfName.VIEW);
addASEvent(PdfName.PRINT, PdfName.PRINT);
addASEvent(PdfName.EXPORT, PdfName.EXPORT);
d.put(PdfName.LISTMODE, PdfName.VISIBLEPAGES);
}
void registerLayer(PdfOCG layer) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_LAYER, null);
if (layer instanceof PdfLayer) {
PdfLayer la = (PdfLayer)layer;
if (la.getTitle() == null) {
if (!documentOCG.contains(layer)) {
documentOCG.add(layer);
documentOCGorder.add(layer);
}
}
else {
documentOCGorder.add(layer);
}
}
else
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("only.pdflayer.is.accepted"));
}
// User methods to change aspects of the page
// [U1] page size
/**
* Use this method to get the size of the media box.
* @return a Rectangle
*/
public Rectangle getPageSize() {
return pdf.getPageSize();
}
/**
* Use this method to set the crop box.
* The crop box should not be rotated even if the page is rotated.
* This change only takes effect in the next page.
* @param crop the crop box
*/
public void setCropBoxSize(Rectangle crop) {
pdf.setCropBoxSize(crop);
}
/**
* Use this method to set the page box sizes.
* Allowed names are: "crop", "trim", "art" and "bleed".
* @param boxName the box size
* @param size the size
*/
public void setBoxSize(String boxName, Rectangle size) {
pdf.setBoxSize(boxName, size);
}
/**
* Use this method to get the size of a trim, art, crop or bleed box,
* or null if not defined.
* @param boxName crop, trim, art or bleed
* @return the Rectangle
*/
public Rectangle getBoxSize(String boxName) {
return pdf.getBoxSize(boxName);
}
// [U2] take care of empty pages
/**
* Use this method to make sure a page is added,
* even if it's empty. If you use setPageEmpty(false),
* invoking newPage() after a blank page will add a newPage.
* setPageEmpty(true) won't have any effect.
* @param pageEmpty the state
*/
public void setPageEmpty(boolean pageEmpty) {
if (pageEmpty)
return;
pdf.setPageEmpty(pageEmpty);
}
/**
* Checks if a newPage() will actually generate a new page.
* @return true if a new page will be generated, false otherwise
* @since 2.1.8
*/
public boolean isPageEmpty() {
return pdf.isPageEmpty();
}
// [U3] page actions (open and close)
/** action value */
public static final PdfName PAGE_OPEN = PdfName.O;
/** action value */
public static final PdfName PAGE_CLOSE = PdfName.C;
/** @see com.lowagie.text.pdf.interfaces.PdfPageActions#setPageAction(com.lowagie.text.pdf.PdfName, com.lowagie.text.pdf.PdfAction) */
public void setPageAction(PdfName actionType, PdfAction action) throws DocumentException {
if (!actionType.equals(PAGE_OPEN) && !actionType.equals(PAGE_CLOSE))
throw new DocumentException(MessageLocalization.getComposedMessage("invalid.page.additional.action.type.1", actionType.toString()));
pdf.setPageAction(actionType, action);
}
/** @see com.lowagie.text.pdf.interfaces.PdfPageActions#setDuration(int) */
public void setDuration(int seconds) {
pdf.setDuration(seconds);
}
/** @see com.lowagie.text.pdf.interfaces.PdfPageActions#setTransition(com.lowagie.text.pdf.PdfTransition) */
public void setTransition(PdfTransition transition) {
pdf.setTransition(transition);
}
// [U4] Thumbnail image
/**
* Use this method to set the thumbnail image for the current page.
* @param image the image
* @throws PdfException on error
* @throws DocumentException or error
*/
public void setThumbnail(Image image) throws DocumentException {
pdf.setThumbnail(image);
}
// [U5] Transparency groups
/**
* A group attributes dictionary specifying the attributes
* of the page's page group for use in the transparent
* imaging model
*/
protected PdfDictionary group;
/**
* Use this method to get the group dictionary.
* @return Value of property group.
*/
public PdfDictionary getGroup() {
return this.group;
}
/**
* Use this method to set the group dictionary.
* @param group New value of property group.
*/
public void setGroup(PdfDictionary group) {
this.group = group;
}
// [U6] space char ratio
/** The default space-char ratio. */
public static final float SPACE_CHAR_RATIO_DEFAULT = 2.5f;
/** Disable the inter-character spacing. */
public static final float NO_SPACE_CHAR_RATIO = 10000000f;
/**
* The ratio between the extra word spacing and the extra character spacing.
* Extra word spacing will grow ratio times more than extra character spacing.
*/
private float spaceCharRatio = SPACE_CHAR_RATIO_DEFAULT;
/**
* Use this method to gets the space/character extra spacing ratio
* for fully justified text.
* @return the space/character extra spacing ratio
*/
public float getSpaceCharRatio() {
return spaceCharRatio;
}
/**
* Use this method to set the ratio between the extra word spacing and
* the extra character spacing when the text is fully justified.
* Extra word spacing will grow spaceCharRatio times more
* than extra character spacing. If the ratio is PdfWriter.NO_SPACE_CHAR_RATIO
* then the extra character spacing will be zero.
* @param spaceCharRatio the ratio between the extra word spacing and the extra character spacing
*/
public void setSpaceCharRatio(float spaceCharRatio) {
if (spaceCharRatio < 0.001f)
this.spaceCharRatio = 0.001f;
else
this.spaceCharRatio = spaceCharRatio;
}
// [U7] run direction (doesn't actually do anything)
/** Use the default run direction. */
public static final int RUN_DIRECTION_DEFAULT = 0;
/** Do not use bidirectional reordering. */
public static final int RUN_DIRECTION_NO_BIDI = 1;
/** Use bidirectional reordering with left-to-right
* preferential run direction.
*/
public static final int RUN_DIRECTION_LTR = 2;
/** Use bidirectional reordering with right-to-left
* preferential run direction.
*/
public static final int RUN_DIRECTION_RTL = 3;
protected int runDirection = RUN_DIRECTION_NO_BIDI;
/**
* Use this method to set the run direction.
* This is only used as a placeholder as it does not affect anything.
* @param runDirection the run direction
*/
public void setRunDirection(int runDirection) {
if (runDirection < RUN_DIRECTION_NO_BIDI || runDirection > RUN_DIRECTION_RTL)
throw new RuntimeException(MessageLocalization.getComposedMessage("invalid.run.direction.1", runDirection));
this.runDirection = runDirection;
}
/**
* Use this method to set the run direction.
* @return the run direction
*/
public int getRunDirection() {
return runDirection;
}
// [U8] user units
protected float userunit = 0f;
/**
* Use this method to get the user unit.
* A user unit is a value that defines the default user space unit.
* The minimum UserUnit is 1 (1 unit = 1/72 inch).
* The maximum UserUnit is 75,000.
* Note that this userunit only works starting with PDF1.6!
* @return Returns the userunit.
*/
public float getUserunit() {
return userunit;
}
/**
* Use this method to set the user unit.
* A UserUnit is a value that defines the default user space unit.
* The minimum UserUnit is 1 (1 unit = 1/72 inch).
* The maximum UserUnit is 75,000.
* Note that this userunit only works starting with PDF1.6!
* @param userunit The userunit to set.
* @throws DocumentException on error
*/
public void setUserunit(float userunit) throws DocumentException {
if (userunit < 1f || userunit > 75000f) throw new DocumentException(MessageLocalization.getComposedMessage("userunit.should.be.a.value.between.1.and.75000"));
this.userunit = userunit;
setAtLeastPdfVersion(VERSION_1_6);
}
// Miscellaneous topics
// [M1] Color settings
protected PdfDictionary defaultColorspace = new PdfDictionary();
/**
* Use this method to get the default colorspaces.
* @return the default colorspaces
*/
public PdfDictionary getDefaultColorspace() {
return defaultColorspace;
}
/**
* Use this method to sets the default colorspace that will be applied
* to all the document. The colorspace is only applied if another colorspace
* with the same name is not present in the content.
*
* The colorspace is applied immediately when creating templates and
* at the page end for the main document content.
* @param key the name of the colorspace. It can be PdfName.DEFAULTGRAY, PdfName.DEFAULTRGB
* or PdfName.DEFAULTCMYK
* @param cs the colorspace. A null or PdfNull removes any colorspace with the same name
*/
public void setDefaultColorspace(PdfName key, PdfObject cs) {
if (cs == null || cs.isNull())
defaultColorspace.remove(key);
defaultColorspace.put(key, cs);
}
// [M2] spot patterns
protected HashMap documentSpotPatterns = new HashMap<>();
protected ColorDetails patternColorspaceRGB;
protected ColorDetails patternColorspaceGRAY;
protected ColorDetails patternColorspaceCMYK;
ColorDetails addSimplePatternColorspace(Color color) {
int type = ExtendedColor.getType(color);
if (type == ExtendedColor.TYPE_PATTERN || type == ExtendedColor.TYPE_SHADING)
throw new RuntimeException(MessageLocalization.getComposedMessage("an.uncolored.tile.pattern.can.not.have.another.pattern.or.shading.as.color"));
try {
switch (type) {
case ExtendedColor.TYPE_RGB:
if (patternColorspaceRGB == null) {
patternColorspaceRGB = new ColorDetails(getColorspaceName(), body.getPdfIndirectReference(), null);
PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICERGB);
addToBody(array, patternColorspaceRGB.getIndirectReference());
}
return patternColorspaceRGB;
case ExtendedColor.TYPE_CMYK:
if (patternColorspaceCMYK == null) {
patternColorspaceCMYK = new ColorDetails(getColorspaceName(), body.getPdfIndirectReference(), null);
PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICECMYK);
addToBody(array, patternColorspaceCMYK.getIndirectReference());
}
return patternColorspaceCMYK;
case ExtendedColor.TYPE_GRAY:
if (patternColorspaceGRAY == null) {
patternColorspaceGRAY = new ColorDetails(getColorspaceName(), body.getPdfIndirectReference(), null);
PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICEGRAY);
addToBody(array, patternColorspaceGRAY.getIndirectReference());
}
return patternColorspaceGRAY;
case ExtendedColor.TYPE_SEPARATION: {
ColorDetails details = addSimple(((SpotColor)color).getPdfSpotColor());
ColorDetails patternDetails = documentSpotPatterns.get(details);
if (patternDetails == null) {
patternDetails = new ColorDetails(getColorspaceName(), body.getPdfIndirectReference(), null);
PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(details.getIndirectReference());
addToBody(array, patternDetails.getIndirectReference());
documentSpotPatterns.put(details, patternDetails);
}
return patternDetails;
}
default:
throw new RuntimeException(MessageLocalization.getComposedMessage("invalid.color.type"));
}
}
catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
}
// [M3] Images
/**
* Use this method to get the strictImageSequence status.
* @return value of property strictImageSequence
*/
public boolean isStrictImageSequence() {
return pdf.isStrictImageSequence();
}
/**
* Use this method to set the image sequence, so that it follows
* the text in strict order (or not).
* @param strictImageSequence new value of property strictImageSequence
*
*/
public void setStrictImageSequence(boolean strictImageSequence) {
pdf.setStrictImageSequence(strictImageSequence);
}
/**
* Use this method to clear text wrapping around images (if applicable).
* @throws DocumentException on error
*/
public void clearTextWrap() throws DocumentException {
pdf.clearTextWrap();
}
/** Dictionary, containing all the images of the PDF document */
protected PdfDictionary imageDictionary = new PdfDictionary();
/** This is the list with all the images in the document. */
private HashMap images = new HashMap<>();
/**
* Use this method to adds an image to the document
* but not to the page resources. It is used with
* templates and Document.add(Image).
* Use this method only if you know what you're doing!
* @param image the Image to add
* @return the name of the image added
* @throws PdfException on error
* @throws DocumentException on error
*/
public PdfName addDirectImageSimple(Image image) throws DocumentException {
return addDirectImageSimple(image, null);
}
/**
* Adds an image to the document but not to the page resources.
* It is used with templates and Document.add(Image).
* Use this method only if you know what you're doing!
* @param image the Image to add
* @param fixedRef the reference to used. It may be null,
* a PdfIndirectReference or a PRIndirectReference.
* @return the name of the image added
* @throws PdfException on error
* @throws DocumentException on error
*/
public PdfName addDirectImageSimple(Image image, PdfIndirectReference fixedRef) throws DocumentException {
PdfName name;
// if the images is already added, just retrieve the name
if (images.containsKey(image.getMySerialId())) {
name = images.get(image.getMySerialId());
}
// if it's a new image, add it to the document
else {
if (image.isImgTemplate()) {
name = new PdfName("img" + images.size());
if(image instanceof ImgWMF){
try {
ImgWMF wmf = (ImgWMF)image;
wmf.readWMF(PdfTemplate.createTemplate(this, 0, 0));
}
catch (Exception e) {
throw new DocumentException(e);
}
}
}
else {
PdfIndirectReference dref = image.getDirectReference();
if (dref != null) {
PdfName rname = new PdfName("img" + images.size());
images.put(image.getMySerialId(), rname);
imageDictionary.put(rname, dref);
return rname;
}
Image maskImage = image.getImageMask();
PdfIndirectReference maskRef = null;
if (maskImage != null) {
PdfName mname = images.get(maskImage.getMySerialId());
maskRef = getImageReference(mname);
}
PdfImage i = new PdfImage(image, "img" + images.size(), maskRef);
if (image instanceof ImgJBIG2) {
byte[] globals = ((ImgJBIG2) image).getGlobalBytes();
if (globals != null) {
PdfDictionary decodeparms = new PdfDictionary();
decodeparms.put(PdfName.JBIG2GLOBALS, getReferenceJBIG2Globals(globals));
i.put(PdfName.DECODEPARMS, decodeparms);
}
}
if (image.hasICCProfile()) {
PdfICCBased icc = new PdfICCBased(image.getICCProfile(), image.getCompressionLevel());
PdfIndirectReference iccRef = add(icc);
PdfArray iccArray = new PdfArray();
iccArray.add(PdfName.ICCBASED);
iccArray.add(iccRef);
PdfArray colorspace = i.getAsArray(PdfName.COLORSPACE);
if (colorspace != null) {
if (colorspace.size() > 1 && PdfName.INDEXED.equals(colorspace.getPdfObject(0)))
colorspace.set(1, iccArray);
else
i.put(PdfName.COLORSPACE, iccArray);
}
else
i.put(PdfName.COLORSPACE, iccArray);
}
add(i, fixedRef);
name = i.name();
}
images.put(image.getMySerialId(), name);
}
return name;
}
/**
* Writes a PdfImage to the outputstream.
*
* @param pdfImage the image to be added
* @return a PdfIndirectReference to the encapsulated image
* @throws PdfException when a document isn't open yet, or has been closed
*/
PdfIndirectReference add(PdfImage pdfImage, PdfIndirectReference fixedRef) throws PdfException {
if (! imageDictionary.contains(pdfImage.name())) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_IMAGE, pdfImage);
if (fixedRef instanceof PRIndirectReference) {
PRIndirectReference r2 = (PRIndirectReference)fixedRef;
fixedRef = new PdfIndirectReference(0, getNewObjectNumber(r2.getReader(), r2.getNumber(), r2.getGeneration()));
}
try {
if (fixedRef == null)
fixedRef = addToBody(pdfImage).getIndirectReference();
else
addToBody(pdfImage, fixedRef);
}
catch(IOException ioe) {
throw new ExceptionConverter(ioe);
}
imageDictionary.put(pdfImage.name(), fixedRef);
return fixedRef;
}
return (PdfIndirectReference) imageDictionary.get(pdfImage.name());
}
/**
* return the PdfIndirectReference to the image with a given name.
*
* @param name the name of the image
* @return a PdfIndirectReference
*/
PdfIndirectReference getImageReference(PdfName name) {
return (PdfIndirectReference) imageDictionary.get(name);
}
protected PdfIndirectReference add(PdfICCBased icc) {
PdfIndirectObject object;
try {
object = addToBody(icc);
}
catch(IOException ioe) {
throw new ExceptionConverter(ioe);
}
return object.getIndirectReference();
}
/**
* A HashSet with Stream objects containing JBIG2 Globals
* @since 2.1.5
*/
protected HashMap JBIG2Globals = new HashMap<>();
/**
* Gets an indirect reference to a JBIG2 Globals stream.
* Adds the stream if it hasn't already been added to the writer.
* @param content a byte array that may already been added to the writer inside a stream object.
* @return the PdfIndirectReference
* @since 2.1.5
*/
protected PdfIndirectReference getReferenceJBIG2Globals(byte[] content) {
if (content == null) return null;
PdfStream stream;
for (PdfStream pdfStream : JBIG2Globals.keySet()) {
stream = pdfStream;
if (Arrays.equals(content, stream.getBytes())) {
return JBIG2Globals.get(stream);
}
}
stream = new PdfStream(content);
PdfIndirectObject ref;
try {
ref = addToBody(stream);
} catch (IOException e) {
return null;
}
JBIG2Globals.put(stream, ref.getIndirectReference());
return ref.getIndirectReference();
}
// [M4] Old table functionality; do we still need it?
/**
* Checks if a Table fits the current page of the PdfDocument.
*
* @param table the table that has to be checked
* @param margin a certain margin
* @return true if the Table fits the page, false otherwise.
*/
public boolean fitsPage(Table table, float margin) {
return pdf.bottom(table) > pdf.indentBottom() + margin;
}
/**
* Checks if a Table fits the current page of the PdfDocument.
*
* @param table the table that has to be checked
* @return true if the Table fits the page, false otherwise.
*/
public boolean fitsPage(Table table) {
return fitsPage(table, 0);
}
// [F12] tagged PDF
/**
* A flag indicating the presence of structure elements that contain user properties attributes.
*/
private boolean userProperties;
/**
* Gets the flag indicating the presence of structure elements that contain user properties attributes.
* @return the user properties flag
*/
public boolean isUserProperties() {
return this.userProperties;
}
/**
* Sets the flag indicating the presence of structure elements that contain user properties attributes.
* @param userProperties the user properties flag
*/
public void setUserProperties(boolean userProperties) {
this.userProperties = userProperties;
}
/**
* Holds value of property RGBTranparency.
*/
private boolean rgbTransparencyBlending;
/**
* Gets the transparency blending colorspace.
* @return true if the transparency blending colorspace is RGB, false
* if it is the default blending colorspace
* @since 2.1.0
*/
public boolean isRgbTransparencyBlending() {
return this.rgbTransparencyBlending;
}
/**
* Sets the transparency blending colorspace to RGB. The default blending colorspace is
* CMYK and will result in faded colors in the screen and in printing. Calling this method
* will return the RGB colors to what is expected. The RGB blending will be applied to all subsequent pages
* until other value is set.
* Note that this is a generic solution that may not work in all cases.
* @param rgbTransparencyBlending true to set the transparency blending colorspace to RGB, false
* to use the default blending colorspace
* @since 2.1.0
*/
public void setRgbTransparencyBlending(boolean rgbTransparencyBlending) {
this.rgbTransparencyBlending = rgbTransparencyBlending;
}
}