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/*
* $Id: PdfWriter.java 3948 2009-06-03 15:17:22Z 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:
* http://www.lowagie.com/iText/
*/
package com.aowagie.text.pdf;
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.GregorianCalendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.TreeSet;
import com.aowagie.text.DocWriter;
import com.aowagie.text.Document;
import com.aowagie.text.DocumentException;
import com.aowagie.text.ExceptionConverter;
import com.aowagie.text.Image;
import com.aowagie.text.ImgJBIG2;
import com.aowagie.text.ImgWMF;
import com.aowagie.text.Rectangle;
import com.aowagie.text.Table;
import com.aowagie.text.pdf.collection.PdfCollection;
import com.aowagie.text.pdf.events.PdfPageEventForwarder;
import com.aowagie.text.pdf.interfaces.PdfAnnotations;
import com.aowagie.text.pdf.interfaces.PdfDocumentActions;
import com.aowagie.text.pdf.interfaces.PdfEncryptionSettings;
import com.aowagie.text.pdf.interfaces.PdfPageActions;
import com.aowagie.text.pdf.interfaces.PdfRunDirection;
import com.aowagie.text.pdf.interfaces.PdfVersion;
import com.aowagie.text.pdf.interfaces.PdfViewerPreferences;
import com.aowagie.text.pdf.interfaces.PdfXConformance;
import com.aowagie.text.pdf.internal.PdfVersionImp;
import com.aowagie.text.pdf.internal.PdfXConformanceImp;
import com.aowagie.text.xml.xmp.XmpWriter;
import harmony.java.awt.Color;
import harmony.java.awt.color.ICC_Profile;
/**
* 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 {
/**
* 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(final Document document, final OutputStream os)
throws DocumentException {
final PdfDocument pdf = new PdfDocument(new GregorianCalendar());
document.addDocListener(pdf);
final PdfWriter writer = new PdfWriter(pdf, os);
pdf.addWriter(writer);
return writer;
}
/**
* The highest generation number possible.
* @since iText 2.1.6
*/
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
*/
static class PdfBody {
// inner classes
/**
* PdfCrossReference is an entry in the PDF Cross-Reference table.
*/
private static class PdfCrossReference implements Comparable {
// membervariables
private final int type;
/** Byte offset in the PDF file. */
private final int offset;
private final int refnum;
/** generation of the object. */
private final int generation;
// constructors
/**
* Constructs a cross-reference element for a PdfIndirectObject.
* @param refnum
* @param offset byte offset of the object
* @param generation generation number of the object
*/
private PdfCrossReference(final int refnum, final int offset, final int generation) {
this.type = 0;
this.offset = offset;
this.refnum = refnum;
this.generation = generation;
}
/**
* Constructs a cross-reference element for a PdfIndirectObject.
* @param refnum
* @param offset byte offset of the object
*/
private PdfCrossReference(final int refnum, final int offset) {
this.type = 1;
this.offset = offset;
this.refnum = refnum;
this.generation = 0;
}
private PdfCrossReference(final int type, final int refnum, final int offset, final int generation) {
this.type = type;
this.offset = offset;
this.refnum = refnum;
this.generation = generation;
}
private int getRefnum() {
return this.refnum;
}
/**
* Returns the PDF representation of this PdfObject.
* @param os
* @throws IOException
*/
private void toPdf(final OutputStream os) throws IOException {
final StringBuffer off = new StringBuffer("0000000000").append(this.offset);
off.delete(0, off.length() - 10);
final StringBuffer gen = new StringBuffer("00000").append(this.generation);
gen.delete(0, gen.length() - 5);
off.append(' ').append(gen).append(this.generation == GENERATION_MAX ? " f \n" : " n \n");
os.write(getISOBytes(off.toString()));
}
/**
* Writes PDF syntax to the OutputStream
* @param midSize
* @param os
* @throws IOException
*/
private void toPdf(int midSize, final OutputStream os) throws IOException {
os.write((byte)this.type);
while (--midSize >= 0) {
os.write((byte)(this.offset >>> 8 * midSize & 0xff));
}
os.write((byte)(this.generation >>> 8 & 0xff));
os.write((byte)(this.generation & 0xff));
}
/**
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
@Override
public int compareTo(final Object o) {
final PdfCrossReference other = (PdfCrossReference)o;
return this.refnum < other.refnum ? -1 : this.refnum==other.refnum ? 0 : 1;
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object obj) {
if (obj instanceof PdfCrossReference) {
final PdfCrossReference other = (PdfCrossReference)obj;
return this.refnum == other.refnum;
} else {
return false;
}
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
return this.refnum;
}
}
private static final int OBJSINSTREAM = 200;
// membervariables
/** array containing the cross-reference table of the normal objects. */
private final TreeSet xrefs;
private int refnum;
/** the current byte position in the body. */
private int position;
private final PdfWriter writer;
private ByteBuffer index;
private ByteBuffer streamObjects;
private int currentObjNum;
private int numObj = 0;
// constructors
/**
* Constructs a new PdfBody.
* @param writer
*/
private PdfBody(final PdfWriter writer) {
this.xrefs = new TreeSet();
this.xrefs.add(new PdfCrossReference(0, 0, GENERATION_MAX));
this.position = writer.getOs().getCounter();
this.refnum = 1;
this.writer = writer;
}
// methods
void setRefnum(final int refnum) {
this.refnum = refnum;
}
private PdfWriter.PdfBody.PdfCrossReference addToObjStm(final PdfObject obj, final int nObj) throws IOException {
if (this.numObj >= OBJSINSTREAM) {
flushObjStm();
}
if (this.index == null) {
this.index = new ByteBuffer();
this.streamObjects = new ByteBuffer();
this.currentObjNum = getIndirectReferenceNumber();
this.numObj = 0;
}
final int p = this.streamObjects.size();
final int idx = this.numObj++;
final PdfEncryption enc = this.writer.crypto;
this.writer.crypto = null;
obj.toPdf(this.writer, this.streamObjects);
this.writer.crypto = enc;
this.streamObjects.append(' ');
this.index.append(nObj).append(' ').append(p).append(' ');
return new PdfWriter.PdfBody.PdfCrossReference(2, nObj, this.currentObjNum, idx);
}
private void flushObjStm() throws IOException {
if (this.numObj == 0) {
return;
}
final int first = this.index.size();
this.index.append(this.streamObjects);
final PdfStream stream = new PdfStream(this.index.toByteArray());
stream.flateCompress(this.writer.getCompressionLevel());
stream.put(PdfName.TYPE, PdfName.OBJSTM);
stream.put(PdfName.N, new PdfNumber(this.numObj));
stream.put(PdfName.FIRST, new PdfNumber(first));
add(stream, this.currentObjNum);
this.index = null;
this.streamObjects = null;
this.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(final PdfObject object) throws IOException {
return add(object, getIndirectReferenceNumber());
}
private PdfIndirectObject add(final PdfObject object, final 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() {
final int n = this.refnum++;
this.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(final PdfObject object, final PdfIndirectReference ref) throws IOException {
return add(object, ref.getNumber());
}
private PdfIndirectObject add(final PdfObject object, final PdfIndirectReference ref, final boolean inObjStm) throws IOException {
return add(object, ref.getNumber(), inObjStm);
}
private PdfIndirectObject add(final PdfObject object, final int refNumber) throws IOException {
return add(object, refNumber, true); // to false
}
private PdfIndirectObject add(final PdfObject object, final int refNumber, final boolean inObjStm) throws IOException {
if (inObjStm && object.canBeInObjStm() && this.writer.isFullCompression()) {
final PdfCrossReference pxref = addToObjStm(object, refNumber);
final PdfIndirectObject indirect = new PdfIndirectObject(refNumber, object, this.writer);
if (!this.xrefs.add(pxref)) {
this.xrefs.remove(pxref);
this.xrefs.add(pxref);
}
return indirect;
}
else {
final PdfIndirectObject indirect = new PdfIndirectObject(refNumber, object, this.writer);
final PdfCrossReference pxref = new PdfCrossReference(refNumber, this.position);
if (!this.xrefs.add(pxref)) {
this.xrefs.remove(pxref);
this.xrefs.add(pxref);
}
indirect.writeTo(this.writer.getOs());
this.position = this.writer.getOs().getCounter();
return indirect;
}
}
/**
* Returns the offset of the Cross-Reference table.
*
* @return an offset
*/
int offset() {
return this.position;
}
/**
* Returns the total number of objects contained in the CrossReferenceTable of this Body.
*
* @return a number of objects
*/
int size() {
return Math.max(((PdfCrossReference)this.xrefs.last()).getRefnum() + 1, this.refnum);
}
/**
* Returns the CrossReferenceTable of the Body.
* @param os
* @param root
* @param info
* @param encryption
* @param fileID
* @param prevxref
* @throws IOException
*/
void writeCrossReferenceTable(final OutputStream os, final PdfIndirectReference root, final PdfIndirectReference info, final PdfIndirectReference encryption, final PdfObject fileID, final int prevxref) throws IOException {
int refNumber = 0;
if (this.writer.isFullCompression()) {
flushObjStm();
refNumber = getIndirectReferenceNumber();
this.xrefs.add(new PdfCrossReference(refNumber, this.position));
}
PdfCrossReference entry = (PdfCrossReference)this.xrefs.first();
int first = entry.getRefnum();
int len = 0;
final ArrayList sections = new ArrayList();
for (final Iterator i = this.xrefs.iterator(); i.hasNext(); ) {
entry = (PdfCrossReference)i.next();
if (first + len == entry.getRefnum()) {
++len;
} else {
sections.add(new Integer(first));
sections.add(new Integer(len));
first = entry.getRefnum();
len = 1;
}
}
sections.add(new Integer(first));
sections.add(new Integer(len));
if (this.writer.isFullCompression()) {
int mid = 4;
int mask = 0xff000000;
for (; mid > 1; --mid) {
if ((mask & this.position) != 0) {
break;
}
mask >>>= 8;
}
ByteBuffer buf = new ByteBuffer();
for (final Iterator i = this.xrefs.iterator(); i.hasNext(); ) {
entry = (PdfCrossReference) i.next();
entry.toPdf(mid, buf);
}
final PdfStream xr = new PdfStream(buf.toByteArray());
buf = null;
xr.flateCompress(this.writer.getCompressionLevel());
xr.put(PdfName.SIZE, new PdfNumber(size()));
xr.put(PdfName.ROOT, root);
if (info != null) {
xr.put(PdfName.INFO, info);
}
if (encryption != null) {
xr.put(PdfName.ENCRYPT, encryption);
}
if (fileID != null) {
xr.put(PdfName.ID, fileID);
}
xr.put(PdfName.W, new PdfArray(new int[]{1, mid, 2}));
xr.put(PdfName.TYPE, PdfName.XREF);
final PdfArray idx = new PdfArray();
for (int k = 0; k < sections.size(); ++k) {
idx.add(new PdfNumber(((Integer)sections.get(k)).intValue()));
}
xr.put(PdfName.INDEX, idx);
if (prevxref > 0) {
xr.put(PdfName.PREV, new PdfNumber(prevxref));
}
final PdfEncryption enc = this.writer.crypto;
this.writer.crypto = null;
final PdfIndirectObject indirect = new PdfIndirectObject(refNumber, xr, this.writer);
indirect.writeTo(this.writer.getOs());
this.writer.crypto = enc;
}
else {
os.write(getISOBytes("xref\n"));
final Iterator i = this.xrefs.iterator();
for (int k = 0; k < sections.size(); k += 2) {
first = ((Integer)sections.get(k)).intValue();
len = ((Integer)sections.get(k + 1)).intValue();
os.write(getISOBytes(String.valueOf(first)));
os.write(getISOBytes(" "));
os.write(getISOBytes(String.valueOf(len)));
os.write('\n');
while (len-- > 0) {
entry = (PdfCrossReference) i.next();
entry.toPdf(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 {
// membervariables
private final int offset;
// constructors
/**
* Constructs a PDF-Trailer.
*
* @param size the number of entries in the PdfCrossReferenceTable
* @param offset offset of 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(final int size, final int offset, final PdfIndirectReference root, final PdfIndirectReference info, final PdfIndirectReference encryption, final PdfObject fileID, final int prevxref) {
this.offset = offset;
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
*/
@Override
public void toPdf(final PdfWriter writer, final OutputStream os) throws IOException {
os.write(getISOBytes("trailer\n"));
super.toPdf(null, os);
os.write(getISOBytes("\nstartxref\n"));
os.write(getISOBytes(String.valueOf(this.offset)));
os.write(getISOBytes("\n%%EOF\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(final PdfDocument document, final OutputStream os) {
super(document, os);
this.pdf = document;
this.directContent = new PdfContentByte(this);
this.directContentUnder = new PdfContentByte(this);
}
// the PdfDocument instance
/** the pdfdocument object. */
protected PdfDocument pdf;
/**
* Gets the PdfDocument associated with this writer.
* @return the PdfDocument
*/
PdfDocument getPdfDocument() {
return this.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 this.pdf.getInfo();
}
/**
* 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(final float leading) throws DocumentException {
if (this.open) {
throw new DocumentException("You can't set the initial leading if the document is already open.");
}
this.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. */
private PdfContentByte directContent;
/** The direct content under in this document. */
private 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 (!this.open) {
throw new RuntimeException("The document is not open.");
}
return this.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 (!this.open) {
throw new RuntimeException("The document is not open.");
}
return this.directContentUnder;
}
/**
* Resets all the direct contents to empty.
* This happens when a new page is started.
*/
void resetContent() {
this.directContent.reset();
this.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(final TreeMap dest) throws IOException {
for (final Iterator i = dest.entrySet().iterator(); i.hasNext();) {
final Map.Entry entry = (Map.Entry) i.next();
final String name = (String) entry.getKey();
final Object obj[] = (Object[]) entry.getValue();
final 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
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject addToBody(final PdfObject object) throws IOException {
final PdfIndirectObject iobj = this.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
* @param inObjStm
* @return a PdfIndirectObject
* @throws IOException */
public PdfIndirectObject addToBody(final PdfObject object, final boolean inObjStm) throws IOException {
final PdfIndirectObject iobj = this.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
* @param ref
* @return a PdfIndirectObject
* @throws IOException
*/
public PdfIndirectObject addToBody(final PdfObject object, final PdfIndirectReference ref) throws IOException {
final PdfIndirectObject iobj = this.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
* @param ref
* @param inObjStm
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject addToBody(final PdfObject object, final PdfIndirectReference ref, final boolean inObjStm) throws IOException {
final PdfIndirectObject iobj = this.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
* @param refNumber
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject addToBody(final PdfObject object, final int refNumber) throws IOException {
final PdfIndirectObject iobj = this.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
* @param refNumber
* @param inObjStm
* @return a PdfIndirectObject
* @throws IOException
*/
PdfIndirectObject addToBody(final PdfObject object, final int refNumber, final boolean inObjStm) throws IOException {
final PdfIndirectObject iobj = this.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 this.body.getPdfIndirectReference();
}
int getIndirectReferenceNumber() {
return this.body.getIndirectReferenceNumber();
}
/**
* Returns the outputStreamCounter.
* @return the outputStreamCounter
*/
private OutputStreamCounter getOs() {
return this.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(final PdfIndirectReference rootObj)
{
final PdfDictionary catalog = this.pdf.getCatalog(rootObj);
// [F12] tagged PDF
if (this.tagged) {
try {
getStructureTreeRoot().buildTree();
}
catch (final Exception e) {
throw new ExceptionConverter(e);
}
catalog.put(PdfName.STRUCTTREEROOT, this.structureTreeRoot.getReference());
final PdfDictionary mi = new PdfDictionary();
mi.put(PdfName.MARKED, PdfBoolean.PDFTRUE);
if (this.userProperties) {
mi.put(PdfName.USERPROPERTIES, PdfBoolean.PDFTRUE);
}
catalog.put(PdfName.MARKINFO, mi);
}
// [F13] OCG
if (!this.documentOCG.isEmpty()) {
fillOCProperties(false);
catalog.put(PdfName.OCPROPERTIES, this.OCProperties);
}
return catalog;
}
/** Holds value of property extraCatalog this is used for Output Intents. */
private PdfDictionary extraCatalog;
/**
* Sets extra keys to the catalog.
* @return the catalog to change
*/
public PdfDictionary getExtraCatalog() {
if (this.extraCatalog == null) {
this.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. */
private final ArrayList pageReferences = new ArrayList();
/** The current page number. */
private int currentPageNumber = 1;
/**
* The value of the Tabs entry in the page dictionary.
* @since 2.1.5
*/
private PdfName tabs = null;
/**
* 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("The page numbers start at 1.");
}
PdfIndirectReference ref;
if (page < this.pageReferences.size()) {
ref = (PdfIndirectReference)this.pageReferences.get(page);
if (ref == null) {
ref = this.body.getPdfIndirectReference();
this.pageReferences.set(page, ref);
}
}
else {
final int empty = page - this.pageReferences.size();
for (int k = 0; k < empty; ++k) {
this.pageReferences.add(null);
}
ref = this.body.getPdfIndirectReference();
this.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 this.pdf.getPageNumber();
}
PdfIndirectReference getCurrentPage() {
return getPageReference(this.currentPageNumber);
}
public int getCurrentPageNumber() {
return this.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(final PdfName tabs) {
this.tabs = tabs;
}
/**
* Returns the value to be used for the Tabs entry in the page tree.
* @since 2.1.5
*/
public PdfName getTabs() {
return this.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(final PdfPage page, final PdfContents contents) throws PdfException {
if (!this.open) {
throw new PdfException("The document isn't open.");
}
PdfIndirectObject object;
try {
object = addToBody(contents);
}
catch(final IOException ioe) {
throw new ExceptionConverter(ioe);
}
page.add(object.getIndirectReference());
// [U5]
if (this.group != null) {
page.put(PdfName.GROUP, this.group);
this.group = null;
}
else if (this.rgbTransparencyBlending) {
final 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);
}
this.root.addPage(page);
this.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(final 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 {
final 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 this.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.aowagie.text.DocWriter#open()
*/
@Override
public void open() {
super.open();
try {
this.pdf_version.writeHeader(this.os);
this.body = new PdfBody(this);
if (this.pdfxConformance.isPdfX32002()) {
final 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}));
final PdfArray arr = new PdfArray(PdfName.CALRGB);
arr.add(sec);
setDefaultColorspace(PdfName.DEFAULTRGB, addToBody(arr).getIndirectReference());
}
}
catch(final 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.aowagie.text.DocWriter#close()
*/
@Override
public void close() {
if (this.open) {
if (this.currentPageNumber - 1 != this.pageReferences.size()) {
throw new RuntimeException("The page " + this.pageReferences.size() +
" was requested but the document has only " + (this.currentPageNumber - 1) + " pages.");
}
this.pdf.close();
try {
addSharedObjectsToBody();
// add the root to the body
final PdfIndirectReference rootRef = this.root.writePageTree();
// make the catalog-object and add it to the body
final PdfDictionary catalog = getCatalog(rootRef);
// [C9] if there is XMP data to add: add it
if (this.xmpMetadata != null) {
final PdfStream xmp = new PdfStream(this.xmpMetadata);
xmp.put(PdfName.TYPE, PdfName.METADATA);
xmp.put(PdfName.SUBTYPE, PdfName.XML);
if (this.crypto != null && !this.crypto.isMetadataEncrypted()) {
final PdfArray ar = new PdfArray();
ar.add(PdfName.CRYPT);
xmp.put(PdfName.FILTER, ar);
}
catalog.put(PdfName.METADATA, this.body.add(xmp).getIndirectReference());
}
// [C10] make pdfx conformant
if (isPdfX()) {
this.pdfxConformance.completeInfoDictionary(getInfo());
this.pdfxConformance.completeExtraCatalog(getExtraCatalog());
}
// [C11] Output Intents
if (this.extraCatalog != null) {
catalog.mergeDifferent(this.extraCatalog);
}
writeOutlines(catalog, false);
// add the Catalog to the body
final PdfIndirectObject indirectCatalog = addToBody(catalog, false);
// add the info-object to the body
final PdfIndirectObject infoObj = addToBody(getInfo(), false);
// [F1] encryption
PdfIndirectReference encryption = null;
PdfObject fileID = null;
this.body.flushObjStm();
if (this.crypto != null) {
final PdfIndirectObject encryptionObject = addToBody(this.crypto.getEncryptionDictionary(), false);
encryption = encryptionObject.getIndirectReference();
fileID = this.crypto.getFileID();
} else {
fileID = PdfEncryption.createInfoId(PdfEncryption.createDocumentId());
}
// write the cross-reference table of the body
this.body.writeCrossReferenceTable(this.os, indirectCatalog.getIndirectReference(),
infoObj.getIndirectReference(), encryption, fileID, this.prevxref);
// make the trailer
// [F2] full compression
if (this.fullCompression) {
this.os.write(getISOBytes("startxref\n"));
this.os.write(getISOBytes(String.valueOf(this.body.offset())));
this.os.write(getISOBytes("\n%%EOF\n"));
}
else {
final PdfTrailer trailer = new PdfTrailer(this.body.size(),
this.body.offset(),
indirectCatalog.getIndirectReference(),
infoObj.getIndirectReference(),
encryption,
fileID, this.prevxref);
trailer.toPdf(this, this.os);
}
super.close();
}
catch(final IOException ioe) {
throw new ExceptionConverter(ioe);
}
}
}
protected void addSharedObjectsToBody() throws IOException {
// [F3] add the fonts
for (final Iterator it = this.documentFonts.values().iterator(); it.hasNext();) {
final FontDetails details = (FontDetails)it.next();
details.writeFont(this);
}
// [F4] add the form XObjects
for (final Iterator it = this.formXObjects.values().iterator(); it.hasNext();) {
final Object objs[] = (Object[])it.next();
final PdfTemplate template = (PdfTemplate)objs[1];
if (template != null && template.getIndirectReference() instanceof PRIndirectReference) {
continue;
}
if (template != null && template.getType() == PdfTemplate.TYPE_TEMPLATE) {
addToBody(template.getFormXObject(this.compressionLevel), template.getIndirectReference());
}
}
// [F5] add all the dependencies in the imported pages
for (final Iterator it = this.importedPages.values().iterator(); it.hasNext();) {
this.currentPdfReaderInstance = (PdfReaderInstance)it.next();
this.currentPdfReaderInstance.writeAllPages();
}
this.currentPdfReaderInstance = null;
// [F6] add the spotcolors
for (final Iterator it = this.documentColors.values().iterator(); it.hasNext();) {
final ColorDetails color = (ColorDetails)it.next();
addToBody(color.getSpotColor(this), color.getIndirectReference());
}
// [F7] add the pattern
for (final Iterator it = this.documentPatterns.keySet().iterator(); it.hasNext();) {
final PdfPatternPainter pat = (PdfPatternPainter)it.next();
addToBody(pat.getPattern(this.compressionLevel), pat.getIndirectReference());
}
// [F8] add the shading patterns
for (final Iterator it = this.documentShadingPatterns.keySet().iterator(); it.hasNext();) {
final PdfShadingPattern shadingPattern = (PdfShadingPattern)it.next();
shadingPattern.addToBody();
}
// [F9] add the shadings
for (final Iterator it = this.documentShadings.keySet().iterator(); it.hasNext();) {
final PdfShading shading = (PdfShading)it.next();
shading.addToBody();
}
// [F10] add the extgstate
for (final Iterator it = this.documentExtGState.entrySet().iterator(); it.hasNext();) {
final Map.Entry entry = (Map.Entry) it.next();
final PdfDictionary gstate = (PdfDictionary) entry.getKey();
final PdfObject obj[] = (PdfObject[]) entry.getValue();
addToBody(gstate, (PdfIndirectReference)obj[1]);
}
// [F11] add the properties
for (final Iterator it = this.documentProperties.entrySet().iterator(); it.hasNext();) {
final Map.Entry entry = (Map.Entry) it.next();
final Object prop = entry.getKey();
final PdfObject[] obj = (PdfObject[]) entry.getValue();
if (prop instanceof PdfLayerMembership){
final 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 (final Iterator it = this.documentOCG.iterator(); it.hasNext();) {
final PdfOCG layer = (PdfOCG)it.next();
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 this.directContent.getRootOutline();
}
protected java.util.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(final java.util.List outlines) {
this.newBookmarks = outlines;
}
protected void writeOutlines(final PdfDictionary catalog, final boolean namedAsNames) throws IOException {
if (this.newBookmarks == null || this.newBookmarks.isEmpty()) {
return;
}
final PdfDictionary top = new PdfDictionary();
final PdfIndirectReference topRef = getPdfIndirectReference();
final Object kids[] = SimpleBookmark.iterateOutlines(this, topRef, this.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]).intValue()));
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.aowagie.text.pdf.interfaces.PdfVersion#setPdfVersion(char) */
@Override
public void setPdfVersion(final char version) {
this.pdf_version.setPdfVersion(version);
}
/** @see com.aowagie.text.pdf.interfaces.PdfVersion#setAtLeastPdfVersion(char) */
@Override
public void setAtLeastPdfVersion(final char version) {
this.pdf_version.setAtLeastPdfVersion(version);
}
/** @see com.aowagie.text.pdf.interfaces.PdfVersion#setPdfVersion(com.aowagie.text.pdf.PdfName) */
@Override
public void setPdfVersion(final PdfName version) {
this.pdf_version.setPdfVersion(version);
}
/**
* @see com.aowagie.text.pdf.interfaces.PdfVersion#addDeveloperExtension(com.aowagie.text.pdf.PdfDeveloperExtension)
* @since 2.1.6
*/
@Override
public void addDeveloperExtension(final PdfDeveloperExtension de) {
this.pdf_version.addDeveloperExtension(de);
}
/**
* Returns the version information.
*/
PdfVersionImp getPdfVersion() {
return this.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.aowagie.text.pdf.interfaces.PdfViewerPreferences#setViewerPreferences(int) */
@Override
public void setViewerPreferences(final int preferences) {
this.pdf.setViewerPreferences(preferences);
}
/** @see com.aowagie.text.pdf.interfaces.PdfViewerPreferences#addViewerPreference(com.aowagie.text.pdf.PdfName, com.aowagie.text.pdf.PdfObject) */
@Override
public void addViewerPreference(final PdfName key, final PdfObject value) {
this.pdf.addViewerPreference(key, value);
}
// [C4] Page labels
/**
* Use this method to add page labels
* @param pageLabels the page labels
*/
public void setPageLabels(final PdfPageLabels pageLabels) {
this.pdf.setPageLabels(pageLabels);
}
// [C5] named objects: named destinations, javascript, embedded files
/**
* 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
*/
private void addJavaScript(final PdfAction js) {
this.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
*/
void addJavaScript(final String code, final boolean unicode) {
addJavaScript(PdfAction.javaScript(code, this, unicode));
}
/**
* 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
*/
private void addJavaScript(final String name, final PdfAction js) {
this.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
*/
private void addJavaScript(final String name, final String code, final boolean unicode) {
addJavaScript(name, PdfAction.javaScript(code, this, unicode));
}
/**
* 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(final String description, final byte fileStore[], final String file, final 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
*/
void addFileAttachment(final String description, final PdfFileSpecification fs) throws IOException {
this.pdf.addFileAttachment(description, fs);
}
// [C6] Actions (open and additional)
/** action value */
static final PdfName DOCUMENT_CLOSE = PdfName.WC;
/** action value */
static final PdfName WILL_SAVE = PdfName.WS;
/** action value */
static final PdfName DID_SAVE = PdfName.DS;
/** action value */
static final PdfName WILL_PRINT = PdfName.WP;
/** action value */
static final PdfName DID_PRINT = PdfName.DP;
/** @see com.aowagie.text.pdf.interfaces.PdfDocumentActions#setOpenAction(java.lang.String) */
@Override
public void setOpenAction(final String name) {
this.pdf.setOpenAction(name);
}
/** @see com.aowagie.text.pdf.interfaces.PdfDocumentActions#setOpenAction(com.aowagie.text.pdf.PdfAction) */
@Override
public void setOpenAction(final PdfAction action) {
this.pdf.setOpenAction(action);
}
public void setAdditionalAction(final PdfName actionType, final 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("Invalid additional action type: " + actionType.toString());
}
this.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(final PdfCollection collection) {
setAtLeastPdfVersion(VERSION_1_7);
this.pdf.setCollection(collection);
}
// [C8] AcroForm
/** @see com.aowagie.text.pdf.interfaces.PdfAnnotations#getAcroForm() */
@Override
public PdfAcroForm getAcroForm() {
return this.pdf.getAcroForm();
}
/** @see com.aowagie.text.pdf.interfaces.PdfAnnotations#addAnnotation(com.aowagie.text.pdf.PdfAnnotation) */
@Override
public void addAnnotation(final PdfAnnotation annot) {
this.pdf.addAnnotation(annot);
}
void addAnnotation(final PdfAnnotation annot, final int page) {
addAnnotation(annot);
}
/** @see com.aowagie.text.pdf.interfaces.PdfAnnotations#setSigFlags(int) */
@Override
public void setSigFlags(final int f) {
this.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(final 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(final byte[] xmpMetadata) {
this.pdf.setXmpMetadata(xmpMetadata);
}
public void createXmpMetadata() {
setXmpMetadata(createXmpMetadataBytes());
}
/**
* @return an XmpMetadata byte array
*/
private byte[] createXmpMetadataBytes() {
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
final XmpWriter xmp = new XmpWriter(baos, this.pdf.getInfo(), this.pdfxConformance.getPDFXConformance());
xmp.close();
}
catch (final 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;
/** PDFA-2A level. */
public static final int PDFA2A = 5;
/** PDFA-2B level. */
public static final int PDFA2B = 6;
/** Stores the PDF/X level. */
private final PdfXConformanceImp pdfxConformance = new PdfXConformanceImp();
/** @see com.aowagie.text.pdf.interfaces.PdfXConformance#setPDFXConformance(int) */
@Override
public void setPDFXConformance(final int pdfx) {
if (this.pdfxConformance.getPDFXConformance() == pdfx) {
return;
}
if (this.pdf.isOpen()) {
throw new PdfXConformanceException("PDFX conformance can only be set before opening the document.");
}
if (this.crypto != null) {
throw new PdfXConformanceException("A PDFX conforming document cannot be encrypted.");
}
if (pdfx == PDFA1A || pdfx == PDFA1B || pdfx == PDFA2A || pdfx == PDFA2B) {
setPdfVersion(VERSION_1_4);
}
else if (pdfx != PDFXNONE) {
setPdfVersion(VERSION_1_3);
}
this.pdfxConformance.setPDFXConformance(pdfx);
}
/** @see com.aowagie.text.pdf.interfaces.PdfXConformance#getPDFXConformance() */
@Override
public int getPDFXConformance() {
return this.pdfxConformance.getPDFXConformance();
}
/** @see com.aowagie.text.pdf.interfaces.PdfXConformance#isPdfX() */
@Override
public boolean isPdfX() {
return this.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(final String outputConditionIdentifier, final String outputCondition, final String registryName, final String info, final ICC_Profile colorProfile) throws IOException {
getExtraCatalog();
final 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) {
final PdfStream stream = new PdfICCBased(colorProfile, this.compressionLevel);
out.put(PdfName.DESTOUTPUTPROFILE, addToBody(stream).getIndirectReference());
}
PdfName intentSubtype;
if (this.pdfxConformance.isPdfA1() || "PDFA/1".equals(outputCondition)) {
intentSubtype = PdfName.GTS_PDFA1;
}
else {
intentSubtype = PdfName.GTS_PDFX;
}
out.put(PdfName.S, intentSubtype);
this.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
*/
private void setOutputIntents(final String outputConditionIdentifier, final String outputCondition, final String registryName, final String info, final byte destOutputProfile[]) throws IOException {
final ICC_Profile colorProfile = destOutputProfile == null ? null : ICC_Profile.getInstance(destOutputProfile);
setOutputIntents(outputConditionIdentifier, outputCondition, registryName, info, colorProfile);
}
private static String getNameString(final PdfDictionary dic, final PdfName key) {
final 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
/** Type of encryption */
static final int STANDARD_ENCRYPTION_40 = 0;
/** Type of encryption */
static final int STANDARD_ENCRYPTION_128 = 1;
/** Type of encryption */
static final int ENCRYPTION_AES_128 = 2;
/** 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 */
static final int DO_NOT_ENCRYPT_METADATA = 8;
/**
* Add this to the mode to keep encrypt only the embedded files.
* @since 2.1.3
*/
static final int EMBEDDED_FILES_ONLY = 24;
// permissions
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_PRINTING = 4 + 2048;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_MODIFY_CONTENTS = 8;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_COPY = 16;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_MODIFY_ANNOTATIONS = 32;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_FILL_IN = 256;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_SCREENREADERS = 512;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_ASSEMBLY = 1024;
/** The operation permitted when the document is opened with the user password
*
* @since 2.0.7
*/
static final int ALLOW_DEGRADED_PRINTING = 4;
/** Contains the business logic for cryptography. */
protected PdfEncryption crypto;
PdfEncryption getEncryption() {
return this.crypto;
}
/** @see com.aowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(byte[], byte[], int, int) */
@Override
public void setEncryption(final byte userPassword[], final byte ownerPassword[], final int permissions, final int encryptionType) throws DocumentException {
if (this.pdf.isOpen()) {
throw new DocumentException("Encryption can only be added before opening the document.");
}
this.crypto = new PdfEncryption();
this.crypto.setCryptoMode(encryptionType, 0);
this.crypto.setupAllKeys(userPassword, ownerPassword, permissions);
}
/** @see com.aowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(java.security.cert.Certificate[], int[], int) */
@Override
public void setEncryption(final Certificate[] certs, final int[] permissions, final int encryptionType) throws DocumentException {
if (this.pdf.isOpen()) {
throw new DocumentException("Encryption can only be added before opening the document.");
}
this.crypto = new PdfEncryption();
if (certs != null) {
for (int i=0; i < certs.length; i++) {
this.crypto.addRecipient(certs[i], permissions[i]);
}
}
this.crypto.setCryptoMode(encryptionType, 0);
this.crypto.getEncryptionDictionary();
}
// [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.
*/
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 this.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(final 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 */
private final LinkedHashMap documentFonts = new LinkedHashMap();
/** The font number counter for the fonts in the document. */
private 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(final BaseFont bf) {
if (bf.getFontType() == BaseFont.FONT_TYPE_DOCUMENT) {
return new FontDetails(new PdfName("F" + this.fontNumber++), ((DocumentFont)bf).getIndirectReference(), bf);
}
FontDetails ret = (FontDetails)this.documentFonts.get(bf);
if (ret == null) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_FONT, bf);
ret = new FontDetails(new PdfName("F" + this.fontNumber++), this.body.getPdfIndirectReference(), bf);
this.documentFonts.put(bf, ret);
}
return ret;
}
void eliminateFontSubset(final PdfDictionary fonts) {
for (final Iterator it = this.documentFonts.values().iterator(); it.hasNext();) {
final FontDetails ft = (FontDetails)it.next();
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}.*/
private final HashMap formXObjects = new LinkedHashMap();
/** The name counter for the form XObjects name. */
private 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, final PdfName forcedName) {
final PdfIndirectReference ref = template.getIndirectReference();
final Object obj[] = (Object[])this.formXObjects.get(ref);
PdfName name = null;
try {
if (obj == null) {
if (forcedName == null) {
name = new PdfName("Xf" + this.formXObjectsCounter);
++this.formXObjectsCounter;
} else {
name = forcedName;
}
if (template.getType() == PdfTemplate.TYPE_IMPORTED) {
// If we got here from PdfCopy we'll have to fill importedPages
final PdfImportedPage ip = (PdfImportedPage)template;
final PdfReader r = ip.getPdfReaderInstance().getReader();
if (!this.importedPages.containsKey(r)) {
this.importedPages.put(r, ip.getPdfReaderInstance());
}
template = null;
}
this.formXObjects.put(ref, new Object[]{name, template});
} else {
name = (PdfName)obj[0];
}
}
catch (final 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
*/
void releaseTemplate(final PdfTemplate tp) throws IOException {
final PdfIndirectReference ref = tp.getIndirectReference();
final Object[] objs = (Object[])this.formXObjects.get(ref);
if (objs == null || objs[1] == null) {
return;
}
final PdfTemplate template = (PdfTemplate)objs[1];
if (template.getIndirectReference() instanceof PRIndirectReference) {
return;
}
if (template.getType() == PdfTemplate.TYPE_TEMPLATE) {
addToBody(template.getFormXObject(this.compressionLevel), template.getIndirectReference());
objs[1] = null;
}
}
// [F5] adding pages imported form other PDF documents
private final HashMap importedPages = new LinkedHashMap();
/**
* 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(final PdfReader reader, final int pageNumber) {
PdfReaderInstance inst = (PdfReaderInstance)this.importedPages.get(reader);
if (inst == null) {
inst = reader.getPdfReaderInstance(this);
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(final PdfReader reader) throws IOException {
this.currentPdfReaderInstance = (PdfReaderInstance)this.importedPages.get(reader);
if (this.currentPdfReaderInstance == null) {
return;
}
this.currentPdfReaderInstance.writeAllPages();
this.currentPdfReaderInstance = null;
this.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 int getCurrentDocumentSize() {
return this.body.offset() + this.body.size() * 20 + 0x48;
}
protected PdfReaderInstance currentPdfReaderInstance;
protected int getNewObjectNumber(final PdfReader reader, final int number, final int generation) {
return this.currentPdfReaderInstance.getNewObjectNumber(number, generation);
}
RandomAccessFileOrArray getReaderFile(final PdfReader reader) {
return this.currentPdfReaderInstance.getReaderFile();
}
// [F6] spot colors
/** The colors of this document */
private final HashMap documentColors = new LinkedHashMap();
/** The color number counter for the colors in the document. */
private int colorNumber = 1;
PdfName getColorspaceName() {
return new PdfName("CS" + this.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(final PdfSpotColor spc) {
ColorDetails ret = (ColorDetails)this.documentColors.get(spc);
if (ret == null) {
ret = new ColorDetails(getColorspaceName(), this.body.getPdfIndirectReference(), spc);
this.documentColors.put(spc, ret);
}
return ret;
}
// [F7] document patterns
/** The patterns of this document */
private final HashMap documentPatterns = new LinkedHashMap();
/** The pattern number counter for the colors in the document. */
private int patternNumber = 1;
PdfName addSimplePattern(final PdfPatternPainter painter) {
PdfName name = (PdfName)this.documentPatterns.get(painter);
try {
if ( name == null ) {
name = new PdfName("P" + this.patternNumber);
++this.patternNumber;
this.documentPatterns.put(painter, name);
}
} catch (final Exception e) {
throw new ExceptionConverter(e);
}
return name;
}
// [F8] shading patterns
private final HashMap documentShadingPatterns = new LinkedHashMap();
void addSimpleShadingPattern(final PdfShadingPattern shading) {
if (!this.documentShadingPatterns.containsKey(shading)) {
shading.setName(this.patternNumber);
++this.patternNumber;
this.documentShadingPatterns.put(shading, null);
addSimpleShading(shading.getShading());
}
}
// [F9] document shadings
private final HashMap documentShadings = new LinkedHashMap();
void addSimpleShading(final PdfShading shading) {
if (!this.documentShadings.containsKey(shading)) {
this.documentShadings.put(shading, null);
shading.setName(this.documentShadings.size());
}
}
// [F10] extended graphics state (for instance for transparency)
private final HashMap documentExtGState = new LinkedHashMap();
PdfObject[] addSimpleExtGState(final PdfDictionary gstate) {
if (!this.documentExtGState.containsKey(gstate)) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_GSTATE, gstate);
this.documentExtGState.put(gstate, new PdfObject[]{new PdfName("GS" + (this.documentExtGState.size() + 1)), getPdfIndirectReference()});
}
return (PdfObject[])this.documentExtGState.get(gstate);
}
// [F11] adding properties (OCG, marked content)
private final HashMap documentProperties = new LinkedHashMap();
PdfObject[] addSimpleProperty(final Object prop, final PdfIndirectReference refi) {
if (!this.documentProperties.containsKey(prop)) {
if (prop instanceof PdfOCG) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_LAYER, null);
}
this.documentProperties.put(prop, new PdfObject[]{new PdfName("Pr" + (this.documentProperties.size() + 1)), refi});
}
return (PdfObject[])this.documentProperties.get(prop);
}
boolean propertyExists(final Object prop) {
return this.documentProperties.containsKey(prop);
}
// [F12] tagged PDF
private final boolean tagged = false;
private PdfStructureTreeRoot structureTreeRoot;
/**
* Check if the document is marked for tagging.
* @return true if the document is marked for tagging
*/
public boolean isTagged() {
return this.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 (this.tagged && this.structureTreeRoot == null) {
this.structureTreeRoot = new PdfStructureTreeRoot(this);
}
return this.structureTreeRoot;
}
// [F13] Optional Content Groups
/** A hashSet containing all the PdfLayer objects. */
protected HashSet documentOCG = new HashSet();
/** An array list used to define the order of an OCG tree. */
private final ArrayList 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 this.OCProperties;
}
private static void getOCGOrder(final PdfArray order, final PdfLayer layer) {
if (!layer.isOnPanel()) {
return;
}
if (layer.getTitle() == null) {
order.add(layer.getRef());
}
final ArrayList children = layer.getChildren();
if (children == null) {
return;
}
final PdfArray kids = new PdfArray();
if (layer.getTitle() != null) {
kids.add(new PdfString(layer.getTitle(), PdfObject.TEXT_UNICODE));
}
for (int k = 0; k < children.size(); ++k) {
getOCGOrder(kids, (PdfLayer)children.get(k));
}
if (kids.size() > 0) {
order.add(kids);
}
}
private void addASEvent(final PdfName event, final PdfName category) {
final PdfArray arr = new PdfArray();
for (final Iterator it = this.documentOCG.iterator(); it.hasNext();) {
final PdfLayer layer = (PdfLayer)it.next();
final PdfDictionary usage = (PdfDictionary)layer.get(PdfName.USAGE);
if (usage != null && usage.get(category) != null) {
arr.add(layer.getRef());
}
}
if (arr.size() == 0) {
return;
}
final PdfDictionary d = (PdfDictionary)this.OCProperties.get(PdfName.D);
PdfArray arras = (PdfArray)d.get(PdfName.AS);
if (arras == null) {
arras = new PdfArray();
d.put(PdfName.AS, arras);
}
final 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
*/
protected void fillOCProperties(final boolean erase) {
if (this.OCProperties == null) {
this.OCProperties = new PdfOCProperties();
}
if (erase) {
this.OCProperties.remove(PdfName.OCGS);
this.OCProperties.remove(PdfName.D);
}
if (this.OCProperties.get(PdfName.OCGS) == null) {
final PdfArray gr = new PdfArray();
for (final Iterator it = this.documentOCG.iterator(); it.hasNext();) {
final PdfLayer layer = (PdfLayer)it.next();
gr.add(layer.getRef());
}
this.OCProperties.put(PdfName.OCGS, gr);
}
if (this.OCProperties.get(PdfName.D) != null) {
return;
}
final ArrayList docOrder = new ArrayList(this.documentOCGorder);
for (final Iterator it = docOrder.iterator(); it.hasNext();) {
final PdfLayer layer = (PdfLayer)it.next();
if (layer.getParent() != null) {
it.remove();
}
}
final PdfArray order = new PdfArray();
for (final Iterator it = docOrder.iterator(); it.hasNext();) {
final PdfLayer layer = (PdfLayer)it.next();
getOCGOrder(order, layer);
}
final PdfDictionary d = new PdfDictionary();
this.OCProperties.put(PdfName.D, d);
d.put(PdfName.ORDER, order);
final PdfArray gr = new PdfArray();
for (final Iterator it = this.documentOCG.iterator(); it.hasNext();) {
final PdfLayer layer = (PdfLayer)it.next();
if (!layer.isOn()) {
gr.add(layer.getRef());
}
}
if (gr.size() > 0) {
d.put(PdfName.OFF, gr);
}
if (this.OCGRadioGroup.size() > 0) {
d.put(PdfName.RBGROUPS, this.OCGRadioGroup);
}
if (this.OCGLocked.size() > 0) {
d.put(PdfName.LOCKED, this.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(final PdfOCG layer) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_LAYER, null);
if (layer instanceof PdfLayer) {
final PdfLayer la = (PdfLayer)layer;
if (la.getTitle() == null) {
if (!this.documentOCG.contains(layer)) {
this.documentOCG.add(layer);
this.documentOCGorder.add(layer);
}
}
else {
this.documentOCGorder.add(layer);
}
} else {
throw new IllegalArgumentException("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 this.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(final Rectangle crop) {
this.pdf.setCropBoxSize(crop);
}
// [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.
* @param pageEmpty the state
*/
public void setPageEmpty(final boolean pageEmpty) {
this.pdf.setPageEmpty(pageEmpty);
}
// [U3] page actions (open and close)
/** action value */
private static final PdfName PAGE_OPEN = PdfName.O;
/** action value */
private static final PdfName PAGE_CLOSE = PdfName.C;
public void setPageAction(final PdfName actionType, final PdfAction action) throws DocumentException {
if (!actionType.equals(PAGE_OPEN) && !actionType.equals(PAGE_CLOSE)) {
throw new DocumentException("Invalid page additional action type: " + actionType.toString());
}
this.pdf.setPageAction(actionType, action);
}
/** @see com.aowagie.text.pdf.interfaces.PdfPageActions#setDuration(int) */
@Override
public void setDuration(final int seconds) {
this.pdf.setDuration(seconds);
}
/** @see com.aowagie.text.pdf.interfaces.PdfPageActions#setTransition(com.aowagie.text.pdf.PdfTransition) */
@Override
public void setTransition(final PdfTransition transition) {
this.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(final Image image) throws PdfException, DocumentException {
this.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
*/
private 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(final PdfDictionary group) {
this.group = group;
}
// [U6] space char ratio
/** The default space-char ratio. */
private static final float SPACE_CHAR_RATIO_DEFAULT = 2.5f;
/**
* 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 this.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(final 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. */
static final int RUN_DIRECTION_DEFAULT = 0;
/** Do not use bidirectional reordering. */
static final int RUN_DIRECTION_NO_BIDI = 1;
/** Use bidirectional reordering with left-to-right
* preferential run direction.
*/
static final int RUN_DIRECTION_LTR = 2;
/** Use bidirectional reordering with right-to-left
* preferential run direction.
*/
static final int RUN_DIRECTION_RTL = 3;
private 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
*/
@Override
public void setRunDirection(final int runDirection) {
if (runDirection < RUN_DIRECTION_NO_BIDI || runDirection > RUN_DIRECTION_RTL) {
throw new RuntimeException("Invalid run direction: " + runDirection);
}
this.runDirection = runDirection;
}
/**
* Use this method to set the run direction.
* @return the run direction
*/
@Override
public int getRunDirection() {
return this.runDirection;
}
// [U8] user units
private 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 this.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(final float userunit) throws DocumentException {
if (userunit < 1f || userunit > 75000f) {
throw new DocumentException("UserUnit should be a value between 1 and 75000.");
}
this.userunit = userunit;
setAtLeastPdfVersion(VERSION_1_6);
}
// Miscellaneous topics
// [M1] Color settings
private final PdfDictionary defaultColorspace = new PdfDictionary();
/**
* Use this method to get the default colorspaces.
* @return the default colorspaces
*/
public PdfDictionary getDefaultColorspace() {
return this.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
*/
private void setDefaultColorspace(final PdfName key, final PdfObject cs) {
if (cs == null || cs.isNull()) {
this.defaultColorspace.remove(key);
}
this.defaultColorspace.put(key, cs);
}
// [M2] spot patterns
private final HashMap documentSpotPatterns = new LinkedHashMap();
private ColorDetails patternColorspaceRGB;
private ColorDetails patternColorspaceGRAY;
private ColorDetails patternColorspaceCMYK;
ColorDetails addSimplePatternColorspace(final Color color) {
final int type = ExtendedColor.getType(color);
if (type == ExtendedColor.TYPE_PATTERN || type == ExtendedColor.TYPE_SHADING) {
throw new RuntimeException("An uncolored tile pattern can not have another pattern or shading as color.");
}
try {
switch (type) {
case ExtendedColor.TYPE_RGB:
if (this.patternColorspaceRGB == null) {
this.patternColorspaceRGB = new ColorDetails(getColorspaceName(), this.body.getPdfIndirectReference(), null);
final PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICERGB);
addToBody(array, this.patternColorspaceRGB.getIndirectReference());
}
return this.patternColorspaceRGB;
case ExtendedColor.TYPE_CMYK:
if (this.patternColorspaceCMYK == null) {
this.patternColorspaceCMYK = new ColorDetails(getColorspaceName(), this.body.getPdfIndirectReference(), null);
final PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICECMYK);
addToBody(array, this.patternColorspaceCMYK.getIndirectReference());
}
return this.patternColorspaceCMYK;
case ExtendedColor.TYPE_GRAY:
if (this.patternColorspaceGRAY == null) {
this.patternColorspaceGRAY = new ColorDetails(getColorspaceName(), this.body.getPdfIndirectReference(), null);
final PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(PdfName.DEVICEGRAY);
addToBody(array, this.patternColorspaceGRAY.getIndirectReference());
}
return this.patternColorspaceGRAY;
case ExtendedColor.TYPE_SEPARATION: {
final ColorDetails details = addSimple(((SpotColor)color).getPdfSpotColor());
ColorDetails patternDetails = (ColorDetails)this.documentSpotPatterns.get(details);
if (patternDetails == null) {
patternDetails = new ColorDetails(getColorspaceName(), this.body.getPdfIndirectReference(), null);
final PdfArray array = new PdfArray(PdfName.PATTERN);
array.add(details.getIndirectReference());
addToBody(array, patternDetails.getIndirectReference());
this.documentSpotPatterns.put(details, patternDetails);
}
return patternDetails;
}
default:
throw new RuntimeException("Invalid color type in PdfWriter.addSimplePatternColorspace().");
}
}
catch (final 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 this.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(final boolean strictImageSequence) {
this.pdf.setStrictImageSequence(strictImageSequence);
}
/** Dictionary, containing all the images of the PDF document */
private final PdfDictionary imageDictionary = new PdfDictionary();
/** This is the list with all the images in the document. */
private final HashMap images = new LinkedHashMap();
/**
* 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
*/
PdfName addDirectImageSimple(final Image image) throws PdfException, 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
*/
private PdfName addDirectImageSimple(final Image image, final PdfIndirectReference fixedRef) throws PdfException, DocumentException {
PdfName name;
// if the images is already added, just retrieve the name
if (this.images.containsKey(image.getMySerialId())) {
name = (PdfName) this.images.get(image.getMySerialId());
}
// if it's a new image, add it to the document
else {
if (image.isImgTemplate()) {
name = new PdfName("img" + this.images.size());
if(image instanceof ImgWMF){
try {
final ImgWMF wmf = (ImgWMF)image;
wmf.readWMF(PdfTemplate.createTemplate(this, 0, 0));
}
catch (final Exception e) {
throw new DocumentException(e);
}
}
}
else {
final PdfIndirectReference dref = image.getDirectReference();
if (dref != null) {
final PdfName rname = new PdfName("img" + this.images.size());
this.images.put(image.getMySerialId(), rname);
this.imageDictionary.put(rname, dref);
return rname;
}
final Image maskImage = image.getImageMask();
PdfIndirectReference maskRef = null;
if (maskImage != null) {
final PdfName mname = (PdfName)this.images.get(maskImage.getMySerialId());
maskRef = getImageReference(mname);
}
final PdfImage i = new PdfImage(image, "img" + this.images.size(), maskRef);
if (image instanceof ImgJBIG2) {
final byte[] globals = ((ImgJBIG2) image).getGlobalBytes();
if (globals != null) {
final PdfDictionary decodeparms = new PdfDictionary();
decodeparms.put(PdfName.JBIG2GLOBALS, getReferenceJBIG2Globals(globals));
i.put(PdfName.DECODEPARMS, decodeparms);
}
}
if (image.hasICCProfile()) {
final PdfICCBased icc = new PdfICCBased(image.getICCProfile(), image.getCompressionLevel());
final PdfIndirectReference iccRef = add(icc);
final PdfArray iccArray = new PdfArray();
iccArray.add(PdfName.ICCBASED);
iccArray.add(iccRef);
final 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();
}
this.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
*/
private PdfIndirectReference add(final PdfImage pdfImage, PdfIndirectReference fixedRef) throws PdfException {
if (! this.imageDictionary.contains(pdfImage.name())) {
PdfXConformanceImp.checkPDFXConformance(this, PdfXConformanceImp.PDFXKEY_IMAGE, pdfImage);
if (fixedRef instanceof PRIndirectReference) {
final 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(final IOException ioe) {
throw new ExceptionConverter(ioe);
}
this.imageDictionary.put(pdfImage.name(), fixedRef);
return fixedRef;
}
return (PdfIndirectReference) this.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(final PdfName name) {
return (PdfIndirectReference) this.imageDictionary.get(name);
}
private PdfIndirectReference add(final PdfICCBased icc) {
PdfIndirectObject object;
try {
object = addToBody(icc);
}
catch(final IOException ioe) {
throw new ExceptionConverter(ioe);
}
return object.getIndirectReference();
}
/**
* A HashSet with Stream objects containing JBIG2 Globals
* @since 2.1.5
*/
private final HashMap JBIG2Globals = new LinkedHashMap();
/**
* 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.
* @since 2.1.5
*/
protected PdfIndirectReference getReferenceJBIG2Globals(final byte[] content) {
if (content == null) {
return null;
}
PdfStream stream;
for (final Iterator i = this.JBIG2Globals.keySet().iterator(); i.hasNext(); ) {
stream = (PdfStream) i.next();
if (Arrays.equals(content, stream.getBytes())) {
return (PdfIndirectReference) this.JBIG2Globals.get(stream);
}
}
stream = new PdfStream(content);
PdfIndirectObject ref;
try {
ref = addToBody(stream);
} catch (final IOException e) {
return null;
}
this.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.
*/
private boolean fitsPage(final Table table, final float margin) {
return this.pdf.bottom(table) > this.pdf.indentBottom() + margin;
}
// [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(final 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(final boolean rgbTransparencyBlending) {
this.rgbTransparencyBlending = rgbTransparencyBlending;
}
}