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com.itextpdf.text.pdf.PdfStamperImp Maven / Gradle / Ivy
/*
* $Id: 8dd316884a91e0d64ba596d311bbfdaf3c86da63 $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2016 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* This program 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 Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.text.pdf;
import com.itextpdf.awt.geom.Point;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Image;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.Version;
import com.itextpdf.text.error_messages.MessageLocalization;
import com.itextpdf.text.exceptions.BadPasswordException;
import com.itextpdf.text.log.Counter;
import com.itextpdf.text.log.CounterFactory;
import com.itextpdf.text.pdf.AcroFields.Item;
import com.itextpdf.text.pdf.collection.PdfCollection;
import com.itextpdf.text.pdf.interfaces.PdfViewerPreferences;
import com.itextpdf.text.pdf.internal.PdfIsoKeys;
import com.itextpdf.text.pdf.internal.PdfViewerPreferencesImp;
import com.itextpdf.text.xml.xmp.PdfProperties;
import com.itextpdf.text.xml.xmp.XmpBasicProperties;
import com.itextpdf.text.xml.xmp.XmpWriter;
import com.itextpdf.xmp.XMPException;
import com.itextpdf.xmp.XMPMeta;
import com.itextpdf.xmp.XMPMetaFactory;
import com.itextpdf.xmp.options.SerializeOptions;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
class PdfStamperImp extends PdfWriter {
HashMap readers2intrefs = new HashMap();
HashMap readers2file = new HashMap();
protected RandomAccessFileOrArray file;
PdfReader reader;
IntHashtable myXref = new IntHashtable();
/**
* Integer(page number) -> PageStamp
*/
HashMap pagesToContent = new HashMap();
protected boolean closed = false;
/**
* Holds value of property rotateContents.
*/
private boolean rotateContents = true;
protected AcroFields acroFields;
protected boolean flat = false;
protected boolean flatFreeText = false;
protected boolean flatannotations = false;
protected int namePtr[] = {0};
protected HashSet partialFlattening = new HashSet();
protected boolean useVp = false;
protected PdfViewerPreferencesImp viewerPreferences = new PdfViewerPreferencesImp();
protected HashSet fieldTemplates = new HashSet();
protected boolean fieldsAdded = false;
protected int sigFlags = 0;
protected boolean append;
protected IntHashtable marked;
protected int initialXrefSize;
protected PdfAction openAction;
protected HashMap namedDestinations = new HashMap();
protected Counter COUNTER = CounterFactory.getCounter(PdfStamper.class);
protected Counter getCounter() {
return COUNTER;
}
/* Flag which defines if PdfLayer objects from existing pdf have been already read.
* If no new layers were registered and user didn't fetched layers explicitly via getPdfLayers() method
* then original layers are never read - they are simply copied to the new document with whole original catalog. */
private boolean originalLayersAreRead = false;
private double[] DEFAULT_MATRIX = {1, 0, 0, 1, 0, 0};
/**
* Creates new PdfStamperImp.
*
* @param reader the read PDF
* @param os the output destination
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param append
* @throws DocumentException on error
* @throws IOException
*/
protected PdfStamperImp(PdfReader reader, OutputStream os, char pdfVersion, boolean append) throws DocumentException, IOException {
super(new PdfDocument(), os);
if (!reader.isOpenedWithFullPermissions())
throw new BadPasswordException(MessageLocalization.getComposedMessage("pdfreader.not.opened.with.owner.password"));
if (reader.isTampered())
throw new DocumentException(MessageLocalization.getComposedMessage("the.original.document.was.reused.read.it.again.from.file"));
reader.setTampered(true);
this.reader = reader;
file = reader.getSafeFile();
this.append = append;
if (reader.isEncrypted() && (append || PdfReader.unethicalreading)) {
crypto = new PdfEncryption(reader.getDecrypt());
}
if (append) {
if (reader.isRebuilt())
throw new DocumentException(MessageLocalization.getComposedMessage("append.mode.requires.a.document.without.errors.even.if.recovery.was.possible"));
pdf_version.setAppendmode(true);
if ( pdfVersion == 0 ) {
pdf_version.setPdfVersion(reader.getPdfVersion());
} else {
pdf_version.setPdfVersion(pdfVersion);
}
byte buf[] = new byte[8192];
int n;
while ((n = file.read(buf)) > 0)
this.os.write(buf, 0, n);
prevxref = reader.getLastXref();
reader.setAppendable(true);
} else {
if (pdfVersion == 0)
super.setPdfVersion(reader.getPdfVersion());
else
super.setPdfVersion(pdfVersion);
}
if (reader.isTagged()) {
this.setTagged();
}
super.open();
pdf.addWriter(this);
if (append) {
body.setRefnum(reader.getXrefSize());
marked = new IntHashtable();
if (reader.isNewXrefType())
fullCompression = true;
if (reader.isHybridXref())
fullCompression = false;
}
initialXrefSize = reader.getXrefSize();
readColorProfile();
}
protected void readColorProfile() {
PdfObject outputIntents = reader.getCatalog().getAsArray(PdfName.OUTPUTINTENTS);
if (outputIntents != null && ((PdfArray) outputIntents).size() > 0) {
PdfStream iccProfileStream = null;
for (int i = 0; i < ((PdfArray) outputIntents).size(); i++) {
PdfDictionary outputIntentDictionary = ((PdfArray) outputIntents).getAsDict(i);
if (outputIntentDictionary != null) {
iccProfileStream = outputIntentDictionary.getAsStream(PdfName.DESTOUTPUTPROFILE);
if (iccProfileStream != null)
break;
}
}
if (iccProfileStream instanceof PRStream) {
try {
colorProfile = ICC_Profile.getInstance(PdfReader.getStreamBytes((PRStream) iccProfileStream));
} catch (IOException exc) {
throw new ExceptionConverter(exc);
}
}
}
}
protected void setViewerPreferences() {
reader.setViewerPreferences(viewerPreferences);
markUsed(reader.getTrailer().get(PdfName.ROOT));
}
protected void close(Map moreInfo) throws IOException {
if (closed) {
return;
}
if (useVp) {
setViewerPreferences();
}
if (flat) {
flatFields();
}
if (flatFreeText) {
flatFreeTextFields();
}
if (flatannotations) {
flattenAnnotations();
}
addFieldResources();
PdfDictionary catalog = reader.getCatalog();
getPdfVersion().addToCatalog(catalog);
PdfDictionary acroForm = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), reader.getCatalog());
if (acroFields != null && acroFields.getXfa().isChanged()) {
markUsed(acroForm);
if (!flat) {
acroFields.getXfa().setXfa(this);
}
}
if (sigFlags != 0) {
if (acroForm != null) {
acroForm.put(PdfName.SIGFLAGS, new PdfNumber(sigFlags));
markUsed(acroForm);
markUsed(catalog);
}
}
closed = true;
addSharedObjectsToBody();
setOutlines();
setJavaScript();
addFileAttachments();
// [C11] Output Intents
if (extraCatalog != null) {
catalog.mergeDifferent(extraCatalog);
}
if (openAction != null) {
catalog.put(PdfName.OPENACTION, openAction);
}
if (pdf.pageLabels != null) {
catalog.put(PdfName.PAGELABELS, pdf.pageLabels.getDictionary(this));
}
// OCG
if (!documentOCG.isEmpty()) {
fillOCProperties(false);
PdfDictionary ocdict = catalog.getAsDict(PdfName.OCPROPERTIES);
if (ocdict == null) {
reader.getCatalog().put(PdfName.OCPROPERTIES, OCProperties);
} else {
ocdict.put(PdfName.OCGS, OCProperties.get(PdfName.OCGS));
PdfDictionary ddict = ocdict.getAsDict(PdfName.D);
if (ddict == null) {
ddict = new PdfDictionary();
ocdict.put(PdfName.D, ddict);
}
ddict.put(PdfName.ORDER, OCProperties.getAsDict(PdfName.D).get(PdfName.ORDER));
ddict.put(PdfName.RBGROUPS, OCProperties.getAsDict(PdfName.D).get(PdfName.RBGROUPS));
ddict.put(PdfName.OFF, OCProperties.getAsDict(PdfName.D).get(PdfName.OFF));
ddict.put(PdfName.AS, OCProperties.getAsDict(PdfName.D).get(PdfName.AS));
}
PdfWriter.checkPdfIsoConformance(this, PdfIsoKeys.PDFISOKEY_LAYER, OCProperties);
}
// metadata
int skipInfo = -1;
PdfIndirectReference iInfo = reader.getTrailer().getAsIndirectObject(PdfName.INFO);
if (iInfo != null) {
skipInfo = iInfo.getNumber();
}
PdfDictionary oldInfo = reader.getTrailer().getAsDict(PdfName.INFO);
String producer = null;
if (oldInfo != null && oldInfo.get(PdfName.PRODUCER) != null) {
producer = oldInfo.getAsString(PdfName.PRODUCER).toUnicodeString();
}
Version version = Version.getInstance();
if (producer == null || version.getVersion().indexOf(version.getProduct()) == -1) {
producer = version.getVersion();
} else {
int idx = producer.indexOf("; modified using");
StringBuffer buf;
if (idx == -1)
buf = new StringBuffer(producer);
else
buf = new StringBuffer(producer.substring(0, idx));
buf.append("; modified using ");
buf.append(version.getVersion());
producer = buf.toString();
}
PdfIndirectReference info = null;
PdfDictionary newInfo = new PdfDictionary();
if (oldInfo != null) {
for (Object element : oldInfo.getKeys()) {
PdfName key = (PdfName) element;
PdfObject value = PdfReader.getPdfObject(oldInfo.get(key));
newInfo.put(key, value);
}
}
if (moreInfo != null) {
for (Map.Entry entry : moreInfo.entrySet()) {
String key = entry.getKey();
PdfName keyName = new PdfName(key);
String value = entry.getValue();
if (value == null)
newInfo.remove(keyName);
else
newInfo.put(keyName, new PdfString(value, PdfObject.TEXT_UNICODE));
}
}
PdfDate date = new PdfDate();
newInfo.put(PdfName.MODDATE, date);
newInfo.put(PdfName.PRODUCER, new PdfString(producer, PdfObject.TEXT_UNICODE));
if (append) {
if (iInfo == null) {
info = addToBody(newInfo, false).getIndirectReference();
} else {
info = addToBody(newInfo, iInfo.getNumber(), false).getIndirectReference();
}
} else {
info = addToBody(newInfo, false).getIndirectReference();
}
// XMP
byte[] altMetadata = null;
PdfObject xmpo = PdfReader.getPdfObject(catalog.get(PdfName.METADATA));
if (xmpo != null && xmpo.isStream()) {
altMetadata = PdfReader.getStreamBytesRaw((PRStream) xmpo);
PdfReader.killIndirect(catalog.get(PdfName.METADATA));
}
PdfStream xmp = null;
if (xmpMetadata != null) {
altMetadata = xmpMetadata;
} else if (xmpWriter != null) {
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PdfProperties.setProducer(xmpWriter.getXmpMeta(), producer);
XmpBasicProperties.setModDate(xmpWriter.getXmpMeta(), date.getW3CDate());
XmpBasicProperties.setMetaDataDate(xmpWriter.getXmpMeta(), date.getW3CDate());
xmpWriter.serialize(baos);
xmpWriter.close();
xmp = new PdfStream(baos.toByteArray());
} catch (XMPException exc) {
xmpWriter = null;
}
}
if (xmp == null && altMetadata != null) {
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (moreInfo == null || xmpMetadata != null) {
XMPMeta xmpMeta = XMPMetaFactory.parseFromBuffer(altMetadata);
PdfProperties.setProducer(xmpMeta, producer);
XmpBasicProperties.setModDate(xmpMeta, date.getW3CDate());
XmpBasicProperties.setMetaDataDate(xmpMeta, date.getW3CDate());
SerializeOptions serializeOptions = new SerializeOptions();
serializeOptions.setPadding(2000);
XMPMetaFactory.serialize(xmpMeta, baos, serializeOptions);
} else {
XmpWriter xmpw = createXmpWriter(baos, newInfo);
xmpw.close();
}
xmp = new PdfStream(baos.toByteArray());
} catch (XMPException e) {
xmp = new PdfStream(altMetadata);
} catch (IOException e) {
xmp = new PdfStream(altMetadata);
}
}
if (xmp != null) {
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);
}
if (append && xmpo != null) {
body.add(xmp, xmpo.getIndRef());
} else {
catalog.put(PdfName.METADATA, body.add(xmp).getIndirectReference());
markUsed(catalog);
}
}
if (!namedDestinations.isEmpty())
updateNamedDestinations();
close(info, skipInfo);
}
protected void close(PdfIndirectReference info, int skipInfo) throws IOException {
alterContents();
int rootN = ((PRIndirectReference) reader.trailer.get(PdfName.ROOT)).getNumber();
if (append) {
int keys[] = marked.getKeys();
for (int k = 0; k < keys.length; ++k) {
int j = keys[k];
PdfObject obj = reader.getPdfObjectRelease(j);
if (obj != null && skipInfo != j && j < initialXrefSize) {
addToBody(obj, obj.getIndRef(), j != rootN);
}
}
for (int k = initialXrefSize; k < reader.getXrefSize(); ++k) {
PdfObject obj = reader.getPdfObject(k);
if (obj != null) {
addToBody(obj, getNewObjectNumber(reader, k, 0));
}
}
} else {
for (int k = 1; k < reader.getXrefSize(); ++k) {
PdfObject obj = reader.getPdfObjectRelease(k);
if (obj != null && skipInfo != k) {
addToBody(obj, getNewObjectNumber(reader, k, 0), k != rootN);
}
}
}
PdfIndirectReference encryption = null;
PdfObject fileID = null;
if (crypto != null) {
if (append) {
encryption = reader.getCryptoRef();
} else {
PdfIndirectObject encryptionObject = addToBody(crypto.getEncryptionDictionary(), false);
encryption = encryptionObject.getIndirectReference();
}
fileID = crypto.getFileID(true);
} else {
PdfArray IDs = reader.trailer.getAsArray(PdfName.ID);
if (IDs != null && IDs.getAsString(0) != null) {
fileID = PdfEncryption.createInfoId(IDs.getAsString(0).getBytes(), true);
} else {
fileID = PdfEncryption.createInfoId(PdfEncryption.createDocumentId(), true);
}
}
PRIndirectReference iRoot = (PRIndirectReference) reader.trailer.get(PdfName.ROOT);
PdfIndirectReference root = new PdfIndirectReference(0, getNewObjectNumber(reader, iRoot.getNumber(), 0));
// write the cross-reference table of the body
body.writeCrossReferenceTable(os, root, info, encryption, fileID, prevxref);
if (fullCompression) {
writeKeyInfo(os);
os.write(getISOBytes("startxref\n"));
os.write(getISOBytes(String.valueOf(body.offset())));
os.write(getISOBytes("\n%%EOF\n"));
} else {
PdfTrailer trailer = new PdfTrailer(body.size(),
body.offset(),
root,
info,
encryption,
fileID, prevxref);
trailer.toPdf(this, os);
}
os.flush();
if (isCloseStream())
os.close();
getCounter().written(os.getCounter());
}
void applyRotation(PdfDictionary pageN, ByteBuffer out) {
if (!rotateContents)
return;
Rectangle page = reader.getPageSizeWithRotation(pageN);
int rotation = page.getRotation();
switch (rotation) {
case 90:
out.append(PdfContents.ROTATE90);
out.append(page.getTop());
out.append(' ').append('0').append(PdfContents.ROTATEFINAL);
break;
case 180:
out.append(PdfContents.ROTATE180);
out.append(page.getRight());
out.append(' ');
out.append(page.getTop());
out.append(PdfContents.ROTATEFINAL);
break;
case 270:
out.append(PdfContents.ROTATE270);
out.append('0').append(' ');
out.append(page.getRight());
out.append(PdfContents.ROTATEFINAL);
break;
}
}
protected void alterContents() throws IOException {
for (Object element : pagesToContent.values()) {
PageStamp ps = (PageStamp) element;
PdfDictionary pageN = ps.pageN;
markUsed(pageN);
PdfArray ar = null;
PdfObject content = PdfReader.getPdfObject(pageN.get(PdfName.CONTENTS), pageN);
if (content == null) {
ar = new PdfArray();
pageN.put(PdfName.CONTENTS, ar);
} else if (content.isArray()) {
ar = new PdfArray((PdfArray) content);
pageN.put(PdfName.CONTENTS, ar);
} else if (content.isStream()) {
ar = new PdfArray();
ar.add(pageN.get(PdfName.CONTENTS));
pageN.put(PdfName.CONTENTS, ar);
} else {
ar = new PdfArray();
pageN.put(PdfName.CONTENTS, ar);
}
ByteBuffer out = new ByteBuffer();
if (ps.under != null) {
out.append(PdfContents.SAVESTATE);
applyRotation(pageN, out);
out.append(ps.under.getInternalBuffer());
out.append(PdfContents.RESTORESTATE);
}
if (ps.over != null)
out.append(PdfContents.SAVESTATE);
PdfStream stream = new PdfStream(out.toByteArray());
stream.flateCompress(compressionLevel);
ar.addFirst(addToBody(stream).getIndirectReference());
out.reset();
if (ps.over != null) {
out.append(' ');
out.append(PdfContents.RESTORESTATE);
ByteBuffer buf = ps.over.getInternalBuffer();
out.append(buf.getBuffer(), 0, ps.replacePoint);
out.append(PdfContents.SAVESTATE);
applyRotation(pageN, out);
out.append(buf.getBuffer(), ps.replacePoint, buf.size() - ps.replacePoint);
out.append(PdfContents.RESTORESTATE);
stream = new PdfStream(out.toByteArray());
stream.flateCompress(compressionLevel);
ar.add(addToBody(stream).getIndirectReference());
}
alterResources(ps);
}
}
void alterResources(PageStamp ps) {
ps.pageN.put(PdfName.RESOURCES, ps.pageResources.getResources());
}
@Override
protected int getNewObjectNumber(PdfReader reader, int number, int generation) {
IntHashtable ref = readers2intrefs.get(reader);
if (ref != null) {
int n = ref.get(number);
if (n == 0) {
n = getIndirectReferenceNumber();
ref.put(number, n);
}
return n;
}
if (currentPdfReaderInstance == null) {
if (append && number < initialXrefSize)
return number;
int n = myXref.get(number);
if (n == 0) {
n = getIndirectReferenceNumber();
myXref.put(number, n);
}
return n;
} else
return currentPdfReaderInstance.getNewObjectNumber(number, generation);
}
@Override
RandomAccessFileOrArray getReaderFile(PdfReader reader) {
if (readers2intrefs.containsKey(reader)) {
RandomAccessFileOrArray raf = readers2file.get(reader);
if (raf != null)
return raf;
return reader.getSafeFile();
}
if (currentPdfReaderInstance == null)
return file;
else
return currentPdfReaderInstance.getReaderFile();
}
/**
* @param reader
* @param openFile
* @throws IOException
*/
public void registerReader(PdfReader reader, boolean openFile) throws IOException {
if (readers2intrefs.containsKey(reader))
return;
readers2intrefs.put(reader, new IntHashtable());
if (openFile) {
RandomAccessFileOrArray raf = reader.getSafeFile();
readers2file.put(reader, raf);
raf.reOpen();
}
}
/**
* @param reader
*/
public void unRegisterReader(PdfReader reader) {
if (!readers2intrefs.containsKey(reader))
return;
readers2intrefs.remove(reader);
RandomAccessFileOrArray raf = readers2file.get(reader);
if (raf == null)
return;
readers2file.remove(reader);
try {
raf.close();
} catch (Exception e) {
}
}
static void findAllObjects(PdfReader reader, PdfObject obj, IntHashtable hits) {
if (obj == null)
return;
switch (obj.type()) {
case PdfObject.INDIRECT:
PRIndirectReference iref = (PRIndirectReference) obj;
if (reader != iref.getReader())
return;
if (hits.containsKey(iref.getNumber()))
return;
hits.put(iref.getNumber(), 1);
findAllObjects(reader, PdfReader.getPdfObject(obj), hits);
return;
case PdfObject.ARRAY:
PdfArray a = (PdfArray) obj;
for (int k = 0; k < a.size(); ++k) {
findAllObjects(reader, a.getPdfObject(k), hits);
}
return;
case PdfObject.DICTIONARY:
case PdfObject.STREAM:
PdfDictionary dic = (PdfDictionary) obj;
for (Object element : dic.getKeys()) {
PdfName name = (PdfName) element;
findAllObjects(reader, dic.get(name), hits);
}
return;
}
}
/**
* @param fdf
* @throws IOException
*/
public void addComments(FdfReader fdf) throws IOException {
if (readers2intrefs.containsKey(fdf))
return;
PdfDictionary catalog = fdf.getCatalog();
catalog = catalog.getAsDict(PdfName.FDF);
if (catalog == null)
return;
PdfArray annots = catalog.getAsArray(PdfName.ANNOTS);
if (annots == null || annots.size() == 0)
return;
registerReader(fdf, false);
IntHashtable hits = new IntHashtable();
HashMap irt = new HashMap();
ArrayList an = new ArrayList();
for (int k = 0; k < annots.size(); ++k) {
PdfObject obj = annots.getPdfObject(k);
PdfDictionary annot = (PdfDictionary) PdfReader.getPdfObject(obj);
PdfNumber page = annot.getAsNumber(PdfName.PAGE);
if (page == null || page.intValue() >= reader.getNumberOfPages())
continue;
findAllObjects(fdf, obj, hits);
an.add(obj);
if (obj.type() == PdfObject.INDIRECT) {
PdfObject nm = PdfReader.getPdfObject(annot.get(PdfName.NM));
if (nm != null && nm.type() == PdfObject.STRING)
irt.put(nm.toString(), obj);
}
}
int arhits[] = hits.getKeys();
for (int k = 0; k < arhits.length; ++k) {
int n = arhits[k];
PdfObject obj = fdf.getPdfObject(n);
if (obj.type() == PdfObject.DICTIONARY) {
PdfObject str = PdfReader.getPdfObject(((PdfDictionary) obj).get(PdfName.IRT));
if (str != null && str.type() == PdfObject.STRING) {
PdfObject i = irt.get(str.toString());
if (i != null) {
PdfDictionary dic2 = new PdfDictionary();
dic2.merge((PdfDictionary) obj);
dic2.put(PdfName.IRT, i);
obj = dic2;
}
}
}
addToBody(obj, getNewObjectNumber(fdf, n, 0));
}
for (int k = 0; k < an.size(); ++k) {
PdfObject obj = an.get(k);
PdfDictionary annot = (PdfDictionary) PdfReader.getPdfObject(obj);
PdfNumber page = annot.getAsNumber(PdfName.PAGE);
PdfDictionary dic = reader.getPageN(page.intValue() + 1);
PdfArray annotsp = (PdfArray) PdfReader.getPdfObject(dic.get(PdfName.ANNOTS), dic);
if (annotsp == null) {
annotsp = new PdfArray();
dic.put(PdfName.ANNOTS, annotsp);
markUsed(dic);
}
markUsed(annotsp);
annotsp.add(obj);
}
}
PageStamp getPageStamp(int pageNum) {
PdfDictionary pageN = reader.getPageN(pageNum);
PageStamp ps = pagesToContent.get(pageN);
if (ps == null) {
ps = new PageStamp(this, reader, pageN);
pagesToContent.put(pageN, ps);
}
return ps;
}
PdfContentByte getUnderContent(int pageNum) {
if (pageNum < 1 || pageNum > reader.getNumberOfPages())
return null;
PageStamp ps = getPageStamp(pageNum);
if (ps.under == null)
ps.under = new StampContent(this, ps);
return ps.under;
}
PdfContentByte getOverContent(int pageNum) {
if (pageNum < 1 || pageNum > reader.getNumberOfPages())
return null;
PageStamp ps = getPageStamp(pageNum);
if (ps.over == null)
ps.over = new StampContent(this, ps);
return ps.over;
}
void correctAcroFieldPages(int page) {
if (acroFields == null)
return;
if (page > reader.getNumberOfPages())
return;
Map fields = acroFields.getFields();
for (AcroFields.Item item : fields.values()) {
for (int k = 0; k < item.size(); ++k) {
int p = item.getPage(k).intValue();
if (p >= page)
item.forcePage(k, p + 1);
}
}
}
private static void moveRectangle(PdfDictionary dic2, PdfReader r, int pageImported, PdfName key, String name) {
Rectangle m = r.getBoxSize(pageImported, name);
if (m == null)
dic2.remove(key);
else
dic2.put(key, new PdfRectangle(m));
}
void replacePage(PdfReader r, int pageImported, int pageReplaced) {
PdfDictionary pageN = reader.getPageN(pageReplaced);
if (pagesToContent.containsKey(pageN))
throw new IllegalStateException(MessageLocalization.getComposedMessage("this.page.cannot.be.replaced.new.content.was.already.added"));
PdfImportedPage p = getImportedPage(r, pageImported);
PdfDictionary dic2 = reader.getPageNRelease(pageReplaced);
dic2.remove(PdfName.RESOURCES);
dic2.remove(PdfName.CONTENTS);
moveRectangle(dic2, r, pageImported, PdfName.MEDIABOX, "media");
moveRectangle(dic2, r, pageImported, PdfName.CROPBOX, "crop");
moveRectangle(dic2, r, pageImported, PdfName.TRIMBOX, "trim");
moveRectangle(dic2, r, pageImported, PdfName.ARTBOX, "art");
moveRectangle(dic2, r, pageImported, PdfName.BLEEDBOX, "bleed");
dic2.put(PdfName.ROTATE, new PdfNumber(r.getPageRotation(pageImported)));
PdfContentByte cb = getOverContent(pageReplaced);
cb.addTemplate(p, 0, 0);
PageStamp ps = pagesToContent.get(pageN);
ps.replacePoint = ps.over.getInternalBuffer().size();
}
void insertPage(int pageNumber, Rectangle mediabox) {
Rectangle media = new Rectangle(mediabox);
int rotation = media.getRotation() % 360;
PdfDictionary page = new PdfDictionary(PdfName.PAGE);
page.put(PdfName.RESOURCES, new PdfDictionary());
page.put(PdfName.ROTATE, new PdfNumber(rotation));
page.put(PdfName.MEDIABOX, new PdfRectangle(media, rotation));
PRIndirectReference pref = reader.addPdfObject(page);
PdfDictionary parent;
PRIndirectReference parentRef;
if (pageNumber > reader.getNumberOfPages()) {
PdfDictionary lastPage = reader.getPageNRelease(reader.getNumberOfPages());
parentRef = (PRIndirectReference) lastPage.get(PdfName.PARENT);
parentRef = new PRIndirectReference(reader, parentRef.getNumber());
parent = (PdfDictionary) PdfReader.getPdfObject(parentRef);
PdfArray kids = (PdfArray) PdfReader.getPdfObject(parent.get(PdfName.KIDS), parent);
kids.add(pref);
markUsed(kids);
reader.pageRefs.insertPage(pageNumber, pref);
} else {
if (pageNumber < 1)
pageNumber = 1;
PdfDictionary firstPage = reader.getPageN(pageNumber);
PRIndirectReference firstPageRef = reader.getPageOrigRef(pageNumber);
reader.releasePage(pageNumber);
parentRef = (PRIndirectReference) firstPage.get(PdfName.PARENT);
parentRef = new PRIndirectReference(reader, parentRef.getNumber());
parent = (PdfDictionary) PdfReader.getPdfObject(parentRef);
PdfArray kids = (PdfArray) PdfReader.getPdfObject(parent.get(PdfName.KIDS), parent);
int len = kids.size();
int num = firstPageRef.getNumber();
for (int k = 0; k < len; ++k) {
PRIndirectReference cur = (PRIndirectReference) kids.getPdfObject(k);
if (num == cur.getNumber()) {
kids.add(k, pref);
break;
}
}
if (len == kids.size())
throw new RuntimeException(MessageLocalization.getComposedMessage("internal.inconsistence"));
markUsed(kids);
reader.pageRefs.insertPage(pageNumber, pref);
correctAcroFieldPages(pageNumber);
}
page.put(PdfName.PARENT, parentRef);
while (parent != null) {
markUsed(parent);
PdfNumber count = (PdfNumber) PdfReader.getPdfObjectRelease(parent.get(PdfName.COUNT));
parent.put(PdfName.COUNT, new PdfNumber(count.intValue() + 1));
parent = parent.getAsDict(PdfName.PARENT);
}
}
/**
* Getter for property rotateContents.
*
* @return Value of property rotateContents.
*/
boolean isRotateContents() {
return this.rotateContents;
}
/**
* Setter for property rotateContents.
*
* @param rotateContents New value of property rotateContents.
*/
void setRotateContents(boolean rotateContents) {
this.rotateContents = rotateContents;
}
boolean isContentWritten() {
return body.size() > 1;
}
AcroFields getAcroFields() {
if (acroFields == null) {
acroFields = new AcroFields(reader, this);
}
return acroFields;
}
void setFormFlattening(boolean flat) {
this.flat = flat;
}
void setFreeTextFlattening(boolean flat) {
this.flatFreeText = flat;
}
boolean partialFormFlattening(String name) {
getAcroFields();
if (acroFields.getXfa().isXfaPresent())
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("partial.form.flattening.is.not.supported.with.xfa.forms"));
if (!acroFields.getFields().containsKey(name))
return false;
partialFlattening.add(name);
return true;
}
protected void flatFields() {
if (append)
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("field.flattening.is.not.supported.in.append.mode"));
getAcroFields();
Map fields = acroFields.getFields();
if (fieldsAdded && partialFlattening.isEmpty()) {
for (String s : fields.keySet()) {
partialFlattening.add(s);
}
}
PdfDictionary acroForm = reader.getCatalog().getAsDict(PdfName.ACROFORM);
PdfArray acroFds = null;
if (acroForm != null) {
acroFds = (PdfArray) PdfReader.getPdfObject(acroForm.get(PdfName.FIELDS), acroForm);
}
for (Map.Entry entry : fields.entrySet()) {
String name = entry.getKey();
if (!partialFlattening.isEmpty() && !partialFlattening.contains(name))
continue;
AcroFields.Item item = entry.getValue();
for (int k = 0; k < item.size(); ++k) {
PdfDictionary merged = item.getMerged(k);
PdfNumber ff = merged.getAsNumber(PdfName.F);
int flags = 0;
if (ff != null)
flags = ff.intValue();
int page = item.getPage(k).intValue();
if (page < 1)
continue;
PdfDictionary appDic = merged.getAsDict(PdfName.AP);
PdfObject as_n = null;
if (appDic != null) {
as_n = appDic.getAsStream(PdfName.N);
if (as_n == null)
as_n = appDic.getAsDict(PdfName.N);
}
if (acroFields.isGenerateAppearances()) {
if (appDic == null || as_n == null) {
try {
acroFields.regenerateField(name);
appDic = acroFields.getFieldItem(name).getMerged(k).getAsDict(PdfName.AP);
}
// if we can't create appearances for some reason, we'll just continue
catch (IOException e) {
} catch (DocumentException e) {
}
} else if (as_n.isStream()) {
PdfStream stream = (PdfStream) as_n;
PdfArray bbox = stream.getAsArray(PdfName.BBOX);
PdfArray rect = merged.getAsArray(PdfName.RECT);
if (bbox != null && rect != null) {
float rectWidth = rect.getAsNumber(2).floatValue() - rect.getAsNumber(0).floatValue();
float bboxWidth = bbox.getAsNumber(2).floatValue() - bbox.getAsNumber(0).floatValue();
float rectHeight = rect.getAsNumber(3).floatValue() - rect.getAsNumber(1).floatValue();
float bboxHeight = bbox.getAsNumber(3).floatValue() - bbox.getAsNumber(1).floatValue();
float widthCoef = Math.abs(bboxWidth != 0 ? rectWidth / bboxWidth : Float.MAX_VALUE);
float heightCoef = Math.abs(bboxHeight != 0 ? rectHeight / bboxHeight : Float.MAX_VALUE);
if (widthCoef != 1 || heightCoef != 1) {
NumberArray array = new NumberArray(widthCoef, 0, 0, heightCoef, 0, 0);
stream.put(PdfName.MATRIX, array);
markUsed(stream);
}
}
}
} else if (appDic != null && as_n != null) {
PdfArray bbox = ((PdfDictionary) as_n).getAsArray(PdfName.BBOX);
PdfArray rect = merged.getAsArray(PdfName.RECT);
if (bbox != null && rect != null) {
float widthDiff = (bbox.getAsNumber(2).floatValue() - bbox.getAsNumber(0).floatValue()) -
(rect.getAsNumber(2).floatValue() - rect.getAsNumber(0).floatValue());
float heightDiff = (bbox.getAsNumber(3).floatValue() - bbox.getAsNumber(1).floatValue()) -
(rect.getAsNumber(3).floatValue() - rect.getAsNumber(1).floatValue());
if (Math.abs(widthDiff) > 1 || Math.abs(heightDiff) > 1) {
try {
//simulate Adobe behavior.
acroFields.setGenerateAppearances(true);
acroFields.regenerateField(name);
acroFields.setGenerateAppearances(false);
appDic = acroFields.getFieldItem(name).getMerged(k).getAsDict(PdfName.AP);
}
// if we can't create appearances for some reason, we'll just continue
catch (IOException e) {
} catch (DocumentException e) {
}
}
}
}
if (appDic != null && (flags & PdfFormField.FLAGS_PRINT) != 0 && (flags & PdfFormField.FLAGS_HIDDEN) == 0) {
PdfObject obj = appDic.get(PdfName.N);
PdfAppearance app = null;
if (obj != null) {
PdfObject objReal = PdfReader.getPdfObject(obj);
if (obj instanceof PdfIndirectReference && !obj.isIndirect())
app = new PdfAppearance((PdfIndirectReference) obj);
else if (objReal instanceof PdfStream) {
((PdfDictionary) objReal).put(PdfName.SUBTYPE, PdfName.FORM);
app = new PdfAppearance((PdfIndirectReference) obj);
} else {
if (objReal != null && objReal.isDictionary()) {
PdfName as = merged.getAsName(PdfName.AS);
if (as != null) {
PdfIndirectReference iref = (PdfIndirectReference) ((PdfDictionary) objReal).get(as);
if (iref != null) {
app = new PdfAppearance(iref);
if (iref.isIndirect()) {
objReal = PdfReader.getPdfObject(iref);
((PdfDictionary) objReal).put(PdfName.SUBTYPE, PdfName.FORM);
}
}
}
}
}
}
if (app != null) {
Rectangle box = PdfReader.getNormalizedRectangle(merged.getAsArray(PdfName.RECT));
PdfContentByte cb = getOverContent(page);
cb.setLiteral("Q ");
cb.addTemplate(app, box.getLeft(), box.getBottom());
cb.setLiteral("q ");
}
}
if (partialFlattening.isEmpty())
continue;
PdfDictionary pageDic = reader.getPageN(page);
PdfArray annots = pageDic.getAsArray(PdfName.ANNOTS);
if (annots == null)
continue;
for (int idx = 0; idx < annots.size(); ++idx) {
PdfObject ran = annots.getPdfObject(idx);
if (!ran.isIndirect())
continue;
PdfObject ran2 = item.getWidgetRef(k);
if (!ran2.isIndirect())
continue;
if (((PRIndirectReference) ran).getNumber() == ((PRIndirectReference) ran2).getNumber()) {
annots.remove(idx--);
PRIndirectReference wdref = (PRIndirectReference) ran2;
while (true) {
PdfDictionary wd = (PdfDictionary) PdfReader.getPdfObject(wdref);
PRIndirectReference parentRef = (PRIndirectReference) wd.get(PdfName.PARENT);
PdfReader.killIndirect(wdref);
if (parentRef == null) { // reached AcroForm
for (int fr = 0; fr < acroFds.size(); ++fr) {
PdfObject h = acroFds.getPdfObject(fr);
if (h.isIndirect() && ((PRIndirectReference) h).getNumber() == wdref.getNumber()) {
acroFds.remove(fr);
--fr;
}
}
break;
}
PdfDictionary parent = (PdfDictionary) PdfReader.getPdfObject(parentRef);
PdfArray kids = parent.getAsArray(PdfName.KIDS);
for (int fr = 0; fr < kids.size(); ++fr) {
PdfObject h = kids.getPdfObject(fr);
if (h.isIndirect() && ((PRIndirectReference) h).getNumber() == wdref.getNumber()) {
kids.remove(fr);
--fr;
}
}
if (!kids.isEmpty())
break;
wdref = parentRef;
}
}
}
if (annots.isEmpty()) {
PdfReader.killIndirect(pageDic.get(PdfName.ANNOTS));
pageDic.remove(PdfName.ANNOTS);
}
}
}
if (!fieldsAdded && partialFlattening.isEmpty()) {
for (int page = 1; page <= reader.getNumberOfPages(); ++page) {
PdfDictionary pageDic = reader.getPageN(page);
PdfArray annots = pageDic.getAsArray(PdfName.ANNOTS);
if (annots == null)
continue;
for (int idx = 0; idx < annots.size(); ++idx) {
PdfObject annoto = annots.getDirectObject(idx);
if (annoto instanceof PdfIndirectReference && !annoto.isIndirect())
continue;
if (!annoto.isDictionary() || PdfName.WIDGET.equals(((PdfDictionary) annoto).get(PdfName.SUBTYPE))) {
annots.remove(idx);
--idx;
}
}
if (annots.isEmpty()) {
PdfReader.killIndirect(pageDic.get(PdfName.ANNOTS));
pageDic.remove(PdfName.ANNOTS);
}
}
eliminateAcroformObjects();
}
}
void eliminateAcroformObjects() {
PdfObject acro = reader.getCatalog().get(PdfName.ACROFORM);
if (acro == null)
return;
PdfDictionary acrodic = (PdfDictionary) PdfReader.getPdfObject(acro);
reader.killXref(acrodic.get(PdfName.XFA));
acrodic.remove(PdfName.XFA);
PdfObject iFields = acrodic.get(PdfName.FIELDS);
if (iFields != null) {
PdfDictionary kids = new PdfDictionary();
kids.put(PdfName.KIDS, iFields);
sweepKids(kids);
PdfReader.killIndirect(iFields);
acrodic.put(PdfName.FIELDS, new PdfArray());
}
acrodic.remove(PdfName.SIGFLAGS);
acrodic.remove(PdfName.NEEDAPPEARANCES);
acrodic.remove(PdfName.DR);
// PdfReader.killIndirect(acro);
// reader.getCatalog().remove(PdfName.ACROFORM);
}
void sweepKids(PdfObject obj) {
PdfObject oo = PdfReader.killIndirect(obj);
if (oo == null || !oo.isDictionary())
return;
PdfDictionary dic = (PdfDictionary) oo;
PdfArray kids = (PdfArray) PdfReader.killIndirect(dic.get(PdfName.KIDS));
if (kids == null)
return;
for (int k = 0; k < kids.size(); ++k) {
sweepKids(kids.getPdfObject(k));
}
}
/**
* If true, annotations with an appearance stream will be flattened.
*
* @param flatAnnotations boolean
* @since 5.5.3
*/
public void setFlatAnnotations(boolean flatAnnotations) {
this.flatannotations = flatAnnotations;
}
/**
* If setFlatAnnotations is set to true, iText will flatten all annotations with an appearance stream
*
* @since 5.5.3
*/
protected void flattenAnnotations() {
flattenAnnotations(false);
}
private void flattenAnnotations(boolean flattenFreeTextAnnotations) {
if (append) {
if (flattenFreeTextAnnotations) {
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("freetext.flattening.is.not.supported.in.append.mode"));
} else {
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("annotation.flattening.is.not.supported.in.append.mode"));
}
}
for (int page = 1; page <= reader.getNumberOfPages(); ++page) {
PdfDictionary pageDic = reader.getPageN(page);
PdfArray annots = pageDic.getAsArray(PdfName.ANNOTS);
if (annots == null) {
continue;
}
for (int idx = 0; idx < annots.size(); ++idx) {
PdfObject annoto = annots.getDirectObject(idx);
if (annoto instanceof PdfIndirectReference && !annoto.isIndirect())
continue;
if (!(annoto instanceof PdfDictionary))
continue;
PdfDictionary annDic = (PdfDictionary) annoto;
if (flattenFreeTextAnnotations) {
if (!(annDic.get(PdfName.SUBTYPE)).equals(PdfName.FREETEXT)) {
continue;
}
} else {
if ((annDic.get(PdfName.SUBTYPE)).equals(PdfName.WIDGET)) {
// skip widgets
continue;
}
}
PdfNumber ff = annDic.getAsNumber(PdfName.F);
int flags = ff != null ? ff.intValue() : 0;
if ((flags & PdfFormField.FLAGS_PRINT) != 0 && (flags & PdfFormField.FLAGS_HIDDEN) == 0) {
PdfObject obj1 = annDic.get(PdfName.AP);
if (obj1 == null)
continue;
PdfDictionary appDic = obj1 instanceof PdfIndirectReference ?
(PdfDictionary) PdfReader.getPdfObject(obj1) : (PdfDictionary) obj1;
PdfObject obj = appDic.get(PdfName.N);
PdfDictionary objDict = appDic.getAsStream(PdfName.N);
PdfAppearance app = null;
PdfObject objReal = PdfReader.getPdfObject(obj);
if (obj instanceof PdfIndirectReference && !obj.isIndirect()) {
app = new PdfAppearance((PdfIndirectReference) obj);
} else if (objReal instanceof PdfStream) {
((PdfDictionary) objReal).put(PdfName.SUBTYPE, PdfName.FORM);
app = new PdfAppearance((PdfIndirectReference) obj);
} else {
if (objReal.isDictionary()) {
PdfName as_p = appDic.getAsName(PdfName.AS);
if (as_p != null) {
PdfIndirectReference iref = (PdfIndirectReference) ((PdfDictionary) objReal).get(as_p);
if (iref != null) {
app = new PdfAppearance(iref);
if (iref.isIndirect()) {
objReal = PdfReader.getPdfObject(iref);
((PdfDictionary) objReal).put(PdfName.SUBTYPE, PdfName.FORM);
}
}
}
}
}
if (app != null) {
Rectangle rect = PdfReader.getNormalizedRectangle(annDic.getAsArray(PdfName.RECT));
Rectangle bBox = PdfReader.getNormalizedRectangle((objDict.getAsArray(PdfName.BBOX)));
PdfContentByte cb = getOverContent(page);
cb.setLiteral("Q ");
if (objDict.getAsArray(PdfName.MATRIX) != null &&
!Arrays.equals(DEFAULT_MATRIX, objDict.getAsArray(PdfName.MATRIX).asDoubleArray())) {
double[] matrix = objDict.getAsArray(PdfName.MATRIX).asDoubleArray();
Rectangle transformBBox = transformBBoxByMatrix(bBox, matrix);
cb.addTemplate(app, (rect.getWidth() / transformBBox.getWidth()), 0, 0, (rect.getHeight() / transformBBox.getHeight()), rect.getLeft(), rect.getBottom());
} else {
//Changed so that when the annotation has a difference scale than the xObject in the appearance dictionary, the image is consistent between
//the input and the flattened document. When the annotation is rotated or skewed, it will still be flattened incorrectly.
cb.addTemplate(app, (rect.getWidth() / bBox.getWidth()), 0, 0, (rect.getHeight() / bBox.getHeight()), rect.getLeft(), rect.getBottom());
}
cb.setLiteral("q ");
annots.remove(idx);
--idx;
}
}
}
if (annots.isEmpty()) {
PdfReader.killIndirect(pageDic.get(PdfName.ANNOTS));
pageDic.remove(PdfName.ANNOTS);
}
}
}
/*
* The transformation BBOX between two coordinate systems can be
* represented by a 3-by-3 transformation matrix and create new BBOX based min(x,y) and
* max(x,y) coordinate pairs
* */
private Rectangle transformBBoxByMatrix(Rectangle bBox, double[] matrix) {
List xArr = new ArrayList();
List yArr = new ArrayList();
Point p1 = transformPoint(bBox.getLeft(), bBox.getBottom(), matrix);
xArr.add(p1.x);
yArr.add(p1.y);
Point p2 = transformPoint(bBox.getRight(), bBox.getTop(), matrix);
xArr.add(p2.x);
yArr.add(p2.y);
Point p3 = transformPoint(bBox.getLeft(), bBox.getTop(), matrix);
xArr.add(p3.x);
yArr.add(p3.y);
Point p4 = transformPoint(bBox.getRight(), bBox.getBottom(), matrix);
xArr.add(p4.x);
yArr.add(p4.y);
return new Rectangle(((Double) Collections.min(xArr)).floatValue(),
((Double) Collections.min(yArr)).floatValue(),
((Double) Collections.max(xArr)).floatValue(),
((Double) Collections.max(yArr)).floatValue());
}
/*
* transform point by algorithm
* x′ = a*x + c×y + e
* y' = b*x + d*y + f
* [ a b c d e f ] transformation matrix values
* */
private Point transformPoint(double x, double y, double[] matrix) {
Point point = new Point();
point.x = matrix[0] * x + matrix[2] * y + matrix[4];
point.y = matrix[1] * x + matrix[3] * y + matrix[5];
return point;
}
protected void flatFreeTextFields() {
flattenAnnotations(true);
}
/**
* @see com.itextpdf.text.pdf.PdfWriter#getPageReference(int)
*/
@Override
public PdfIndirectReference getPageReference(int page) {
PdfIndirectReference ref = reader.getPageOrigRef(page);
if (ref == null)
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("invalid.page.number.1", page));
return ref;
}
/**
* @see com.itextpdf.text.pdf.PdfWriter#addAnnotation(com.itextpdf.text.pdf.PdfAnnotation)
*/
@Override
public void addAnnotation(PdfAnnotation annot) {
throw new RuntimeException(MessageLocalization.getComposedMessage("unsupported.in.this.context.use.pdfstamper.addannotation"));
}
void addDocumentField(PdfIndirectReference ref) {
PdfDictionary catalog = reader.getCatalog();
PdfDictionary acroForm = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), catalog);
if (acroForm == null) {
acroForm = new PdfDictionary();
catalog.put(PdfName.ACROFORM, acroForm);
markUsed(catalog);
}
PdfArray fields = (PdfArray) PdfReader.getPdfObject(acroForm.get(PdfName.FIELDS), acroForm);
if (fields == null) {
fields = new PdfArray();
acroForm.put(PdfName.FIELDS, fields);
markUsed(acroForm);
}
if (!acroForm.contains(PdfName.DA)) {
acroForm.put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g "));
markUsed(acroForm);
}
fields.add(ref);
markUsed(fields);
}
protected void addFieldResources() throws IOException {
if (fieldTemplates.isEmpty())
return;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary acroForm = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), catalog);
if (acroForm == null) {
acroForm = new PdfDictionary();
catalog.put(PdfName.ACROFORM, acroForm);
markUsed(catalog);
}
PdfDictionary dr = (PdfDictionary) PdfReader.getPdfObject(acroForm.get(PdfName.DR), acroForm);
if (dr == null) {
dr = new PdfDictionary();
acroForm.put(PdfName.DR, dr);
markUsed(acroForm);
}
markUsed(dr);
for (PdfTemplate template : fieldTemplates) {
PdfFormField.mergeResources(dr, (PdfDictionary) template.getResources(), this);
}
// if (dr.get(PdfName.ENCODING) == null) dr.put(PdfName.ENCODING, PdfName.WIN_ANSI_ENCODING);
PdfDictionary fonts = dr.getAsDict(PdfName.FONT);
if (fonts == null) {
fonts = new PdfDictionary();
dr.put(PdfName.FONT, fonts);
}
if (!fonts.contains(PdfName.HELV)) {
PdfDictionary dic = new PdfDictionary(PdfName.FONT);
dic.put(PdfName.BASEFONT, PdfName.HELVETICA);
dic.put(PdfName.ENCODING, PdfName.WIN_ANSI_ENCODING);
dic.put(PdfName.NAME, PdfName.HELV);
dic.put(PdfName.SUBTYPE, PdfName.TYPE1);
fonts.put(PdfName.HELV, addToBody(dic).getIndirectReference());
}
if (!fonts.contains(PdfName.ZADB)) {
PdfDictionary dic = new PdfDictionary(PdfName.FONT);
dic.put(PdfName.BASEFONT, PdfName.ZAPFDINGBATS);
dic.put(PdfName.NAME, PdfName.ZADB);
dic.put(PdfName.SUBTYPE, PdfName.TYPE1);
fonts.put(PdfName.ZADB, addToBody(dic).getIndirectReference());
}
if (acroForm.get(PdfName.DA) == null) {
acroForm.put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g "));
markUsed(acroForm);
}
}
void expandFields(PdfFormField field, ArrayList allAnnots) {
allAnnots.add(field);
ArrayList kids = field.getKids();
if (kids != null) {
for (int k = 0; k < kids.size(); ++k)
expandFields(kids.get(k), allAnnots);
}
}
void addAnnotation(PdfAnnotation annot, PdfDictionary pageN) {
try {
ArrayList allAnnots = new ArrayList();
if (annot.isForm()) {
fieldsAdded = true;
getAcroFields();
PdfFormField field = (PdfFormField) annot;
if (field.getParent() != null)
return;
expandFields(field, allAnnots);
} else
allAnnots.add(annot);
for (int k = 0; k < allAnnots.size(); ++k) {
annot = allAnnots.get(k);
if (annot.getPlaceInPage() > 0)
pageN = reader.getPageN(annot.getPlaceInPage());
if (annot.isForm()) {
if (!annot.isUsed()) {
HashSet templates = annot.getTemplates();
if (templates != null)
fieldTemplates.addAll(templates);
}
PdfFormField field = (PdfFormField) annot;
if (field.getParent() == null)
addDocumentField(field.getIndirectReference());
}
if (annot.isAnnotation()) {
PdfObject pdfobj = PdfReader.getPdfObject(pageN.get(PdfName.ANNOTS), pageN);
PdfArray annots = null;
if (pdfobj == null || !pdfobj.isArray()) {
annots = new PdfArray();
pageN.put(PdfName.ANNOTS, annots);
markUsed(pageN);
} else
annots = (PdfArray) pdfobj;
annots.add(annot.getIndirectReference());
markUsed(annots);
if (!annot.isUsed()) {
PdfRectangle rect = (PdfRectangle) annot.get(PdfName.RECT);
if (rect != null && (rect.left() != 0 || rect.right() != 0 || rect.top() != 0 || rect.bottom() != 0)) {
int rotation = reader.getPageRotation(pageN);
Rectangle pageSize = reader.getPageSizeWithRotation(pageN);
switch (rotation) {
case 90:
annot.put(PdfName.RECT, new PdfRectangle(
pageSize.getTop() - rect.top(),
rect.right(),
pageSize.getTop() - rect.bottom(),
rect.left()));
break;
case 180:
annot.put(PdfName.RECT, new PdfRectangle(
pageSize.getRight() - rect.left(),
pageSize.getTop() - rect.bottom(),
pageSize.getRight() - rect.right(),
pageSize.getTop() - rect.top()));
break;
case 270:
annot.put(PdfName.RECT, new PdfRectangle(
rect.bottom(),
pageSize.getRight() - rect.left(),
rect.top(),
pageSize.getRight() - rect.right()));
break;
}
}
}
}
if (!annot.isUsed()) {
annot.setUsed();
addToBody(annot, annot.getIndirectReference());
}
}
} catch (IOException e) {
throw new ExceptionConverter(e);
}
}
@Override
void addAnnotation(PdfAnnotation annot, int page) {
if (annot.isAnnotation())
annot.setPage(page);
addAnnotation(annot, reader.getPageN(page));
}
private void outlineTravel(PRIndirectReference outline) {
while (outline != null) {
PdfDictionary outlineR = (PdfDictionary) PdfReader.getPdfObjectRelease(outline);
PRIndirectReference first = (PRIndirectReference) outlineR.get(PdfName.FIRST);
if (first != null) {
outlineTravel(first);
}
PdfReader.killIndirect(outlineR.get(PdfName.DEST));
PdfReader.killIndirect(outlineR.get(PdfName.A));
PdfReader.killIndirect(outline);
outline = (PRIndirectReference) outlineR.get(PdfName.NEXT);
}
}
void deleteOutlines() {
PdfDictionary catalog = reader.getCatalog();
PdfObject obj = catalog.get(PdfName.OUTLINES);
if (obj == null)
return;
if (obj instanceof PRIndirectReference) {
PRIndirectReference outlines = (PRIndirectReference) obj;
outlineTravel(outlines);
PdfReader.killIndirect(outlines);
}
catalog.remove(PdfName.OUTLINES);
markUsed(catalog);
}
protected void setJavaScript() throws IOException {
HashMap djs = pdf.getDocumentLevelJS();
if (djs.isEmpty())
return;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary names = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.NAMES), catalog);
if (names == null) {
names = new PdfDictionary();
catalog.put(PdfName.NAMES, names);
markUsed(catalog);
}
markUsed(names);
PdfDictionary tree = PdfNameTree.writeTree(djs, this);
names.put(PdfName.JAVASCRIPT, addToBody(tree).getIndirectReference());
}
protected void addFileAttachments() throws IOException {
HashMap fs = pdf.getDocumentFileAttachment();
if (fs.isEmpty())
return;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary names = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.NAMES), catalog);
if (names == null) {
names = new PdfDictionary();
catalog.put(PdfName.NAMES, names);
markUsed(catalog);
}
markUsed(names);
HashMap old = PdfNameTree.readTree((PdfDictionary) PdfReader.getPdfObjectRelease(names.get(PdfName.EMBEDDEDFILES)));
for (Map.Entry entry : fs.entrySet()) {
String name = entry.getKey();
int k = 0;
StringBuilder nn = new StringBuilder(name);
while (old.containsKey(nn.toString())) {
++k;
nn.append(" ").append(k);
}
old.put(nn.toString(), entry.getValue());
}
PdfDictionary tree = PdfNameTree.writeTree(old, this);
// Remove old EmbeddedFiles object if preset
PdfObject oldEmbeddedFiles = names.get(PdfName.EMBEDDEDFILES);
if (oldEmbeddedFiles != null) {
PdfReader.killIndirect(oldEmbeddedFiles);
}
// Add new EmbeddedFiles object
names.put(PdfName.EMBEDDEDFILES, addToBody(tree).getIndirectReference());
}
/**
* Adds or replaces the Collection Dictionary in the Catalog.
*
* @param collection the new collection dictionary.
*/
void makePackage(PdfCollection collection) {
PdfDictionary catalog = reader.getCatalog();
catalog.put(PdfName.COLLECTION, collection);
}
protected void setOutlines() throws IOException {
if (newBookmarks == null)
return;
deleteOutlines();
if (newBookmarks.isEmpty())
return;
PdfDictionary catalog = reader.getCatalog();
boolean namedAsNames = catalog.get(PdfName.DESTS) != null;
writeOutlines(catalog, namedAsNames);
markUsed(catalog);
}
/**
* Sets the viewer preferences.
*
* @param preferences the viewer preferences
* @see PdfWriter#setViewerPreferences(int)
*/
@Override
public void setViewerPreferences(int preferences) {
useVp = true;
this.viewerPreferences.setViewerPreferences(preferences);
}
/**
* Adds a viewer preference
*
* @param key a key for a viewer preference
* @param value the value for the viewer preference
* @see PdfViewerPreferences#addViewerPreference
*/
@Override
public void addViewerPreference(PdfName key, PdfObject value) {
useVp = true;
this.viewerPreferences.addViewerPreference(key, value);
}
/**
* Set the signature flags.
*
* @param f the flags. This flags are ORed with current ones
*/
@Override
public void setSigFlags(int f) {
sigFlags |= f;
}
/**
* Always throws an UnsupportedOperationException.
*
* @param actionType ignore
* @param action ignore
* @throws PdfException ignore
* @see PdfStamper#setPageAction(PdfName, PdfAction, int)
*/
@Override
public void setPageAction(PdfName actionType, PdfAction action) throws PdfException {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.setpageaction.pdfname.actiontype.pdfaction.action.int.page"));
}
/**
* Sets the open and close page additional action.
*
* @param actionType the action type. It can be PdfWriter.PAGE_OPEN
* or PdfWriter.PAGE_CLOSE
* @param action the action to perform
* @param page the page where the action will be applied. The first page is 1
* @throws PdfException if the action type is invalid
*/
void setPageAction(PdfName actionType, PdfAction action, int page) throws PdfException {
if (!actionType.equals(PAGE_OPEN) && !actionType.equals(PAGE_CLOSE))
throw new PdfException(MessageLocalization.getComposedMessage("invalid.page.additional.action.type.1", actionType.toString()));
PdfDictionary pg = reader.getPageN(page);
PdfDictionary aa = (PdfDictionary) PdfReader.getPdfObject(pg.get(PdfName.AA), pg);
if (aa == null) {
aa = new PdfDictionary();
pg.put(PdfName.AA, aa);
markUsed(pg);
}
aa.put(actionType, action);
markUsed(aa);
}
/**
* Always throws an UnsupportedOperationException.
*
* @param seconds ignore
*/
@Override
public void setDuration(int seconds) {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.setpageaction.pdfname.actiontype.pdfaction.action.int.page"));
}
/**
* Always throws an UnsupportedOperationException.
*
* @param transition ignore
*/
@Override
public void setTransition(PdfTransition transition) {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.setpageaction.pdfname.actiontype.pdfaction.action.int.page"));
}
/**
* Sets the display duration for the page (for presentations)
*
* @param seconds the number of seconds to display the page. A negative value removes the entry
* @param page the page where the duration will be applied. The first page is 1
*/
void setDuration(int seconds, int page) {
PdfDictionary pg = reader.getPageN(page);
if (seconds < 0)
pg.remove(PdfName.DUR);
else
pg.put(PdfName.DUR, new PdfNumber(seconds));
markUsed(pg);
}
/**
* Sets the transition for the page
*
* @param transition the transition object. A null removes the transition
* @param page the page where the transition will be applied. The first page is 1
*/
void setTransition(PdfTransition transition, int page) {
PdfDictionary pg = reader.getPageN(page);
if (transition == null)
pg.remove(PdfName.TRANS);
else
pg.put(PdfName.TRANS, transition.getTransitionDictionary());
markUsed(pg);
}
protected void markUsed(PdfObject obj) {
if (append && obj != null) {
PRIndirectReference ref = null;
if (obj.type() == PdfObject.INDIRECT)
ref = (PRIndirectReference) obj;
else
ref = obj.getIndRef();
if (ref != null)
marked.put(ref.getNumber(), 1);
}
}
protected void markUsed(int num) {
if (append)
marked.put(num, 1);
}
/**
* Getter for property append.
*
* @return Value of property append.
*/
boolean isAppend() {
return append;
}
public PdfReader getPdfReader() {
return this.reader;
}
/**
* Additional-actions defining the actions to be taken in
* response to various trigger events affecting the document
* as a whole. The actions types allowed are: DOCUMENT_CLOSE,
* WILL_SAVE, DID_SAVE, WILL_PRINT
* and DID_PRINT.
*
* @param actionType the action type
* @param action the action to execute in response to the trigger
* @throws PdfException on invalid action type
*/
@Override
public void setAdditionalAction(PdfName actionType, PdfAction action) throws PdfException {
if (!(actionType.equals(DOCUMENT_CLOSE) ||
actionType.equals(WILL_SAVE) ||
actionType.equals(DID_SAVE) ||
actionType.equals(WILL_PRINT) ||
actionType.equals(DID_PRINT))) {
throw new PdfException(MessageLocalization.getComposedMessage("invalid.additional.action.type.1", actionType.toString()));
}
PdfDictionary aa = reader.getCatalog().getAsDict(PdfName.AA);
if (aa == null) {
if (action == null)
return;
aa = new PdfDictionary();
reader.getCatalog().put(PdfName.AA, aa);
}
markUsed(aa);
if (action == null)
aa.remove(actionType);
else
aa.put(actionType, action);
}
/**
* @see com.itextpdf.text.pdf.PdfWriter#setOpenAction(com.itextpdf.text.pdf.PdfAction)
*/
@Override
public void setOpenAction(PdfAction action) {
openAction = action;
}
/**
* @see com.itextpdf.text.pdf.PdfWriter#setOpenAction(java.lang.String)
*/
@Override
public void setOpenAction(String name) {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("open.actions.by.name.are.not.supported"));
}
/**
* @see com.itextpdf.text.pdf.PdfWriter#setThumbnail(com.itextpdf.text.Image)
*/
@Override
public void setThumbnail(com.itextpdf.text.Image image) {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.pdfstamper.setthumbnail"));
}
void setThumbnail(Image image, int page) throws PdfException, DocumentException {
PdfIndirectReference thumb = getImageReference(addDirectImageSimple(image));
reader.resetReleasePage();
PdfDictionary dic = reader.getPageN(page);
dic.put(PdfName.THUMB, thumb);
reader.resetReleasePage();
}
@Override
public PdfContentByte getDirectContentUnder() {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.pdfstamper.getundercontent.or.pdfstamper.getovercontent"));
}
@Override
public PdfContentByte getDirectContent() {
throw new UnsupportedOperationException(MessageLocalization.getComposedMessage("use.pdfstamper.getundercontent.or.pdfstamper.getovercontent"));
}
/**
* Reads the OCProperties dictionary from the catalog of the existing document
* and fills the documentOCG, documentOCGorder and OCGRadioGroup variables in PdfWriter.
* Note that the original OCProperties of the existing document can contain more information.
*
* @since 2.1.2
*/
protected void readOCProperties() {
if (!documentOCG.isEmpty()) {
return;
}
PdfDictionary dict = reader.getCatalog().getAsDict(PdfName.OCPROPERTIES);
if (dict == null) {
return;
}
PdfArray ocgs = dict.getAsArray(PdfName.OCGS);
PdfIndirectReference ref;
PdfLayer layer;
HashMap ocgmap = new HashMap();
for (Iterator i = ocgs.listIterator(); i.hasNext(); ) {
ref = (PdfIndirectReference) i.next();
layer = new PdfLayer(null);
layer.setRef(ref);
layer.setOnPanel(false);
layer.merge((PdfDictionary) PdfReader.getPdfObject(ref));
ocgmap.put(ref.toString(), layer);
}
PdfDictionary d = dict.getAsDict(PdfName.D);
PdfArray off = d.getAsArray(PdfName.OFF);
if (off != null) {
for (Iterator i = off.listIterator(); i.hasNext(); ) {
ref = (PdfIndirectReference) i.next();
layer = ocgmap.get(ref.toString());
layer.setOn(false);
}
}
PdfArray order = d.getAsArray(PdfName.ORDER);
if (order != null) {
addOrder(null, order, ocgmap);
}
documentOCG.addAll(ocgmap.values());
OCGRadioGroup = d.getAsArray(PdfName.RBGROUPS);
if (OCGRadioGroup == null)
OCGRadioGroup = new PdfArray();
OCGLocked = d.getAsArray(PdfName.LOCKED);
if (OCGLocked == null)
OCGLocked = new PdfArray();
}
/**
* Recursive method to reconstruct the documentOCGorder variable in the writer.
*
* @param parent a parent PdfLayer (can be null)
* @param arr an array possibly containing children for the parent PdfLayer
* @param ocgmap a HashMap with indirect reference Strings as keys and PdfLayer objects as values.
* @since 2.1.2
*/
private void addOrder(PdfLayer parent, PdfArray arr, Map ocgmap) {
PdfObject obj;
PdfLayer layer;
for (int i = 0; i < arr.size(); i++) {
obj = arr.getPdfObject(i);
if (obj.isIndirect()) {
layer = ocgmap.get(obj.toString());
if (layer != null) {
layer.setOnPanel(true);
registerLayer(layer);
if (parent != null) {
parent.addChild(layer);
}
if (arr.size() > i + 1 && arr.getPdfObject(i + 1).isArray()) {
i++;
addOrder(layer, (PdfArray) arr.getPdfObject(i), ocgmap);
}
}
} else if (obj.isArray()) {
PdfArray sub = (PdfArray) obj;
if (sub.isEmpty()) return;
obj = sub.getPdfObject(0);
if (obj.isString()) {
layer = new PdfLayer(obj.toString());
layer.setOnPanel(true);
registerLayer(layer);
if (parent != null) {
parent.addChild(layer);
}
PdfArray array = new PdfArray();
for (Iterator j = sub.listIterator(); j.hasNext(); ) {
array.add(j.next());
}
addOrder(layer, array, ocgmap);
} else {
addOrder(parent, (PdfArray) obj, ocgmap);
}
}
}
}
/**
* Gets the PdfLayer objects in an existing document as a Map
* with the names/titles of the layers as keys.
*
* @return a Map with all the PdfLayers in the document (and the name/title of the layer as key)
* @since 2.1.2
*/
public Map getPdfLayers() {
if (!originalLayersAreRead) {
originalLayersAreRead = true;
readOCProperties();
}
HashMap map = new HashMap();
PdfLayer layer;
String key;
for (PdfOCG pdfOCG : documentOCG) {
layer = (PdfLayer) pdfOCG;
if (layer.getTitle() == null) {
key = layer.getAsString(PdfName.NAME).toString();
} else {
key = layer.getTitle();
}
if (map.containsKey(key)) {
int seq = 2;
String tmp = key + "(" + seq + ")";
while (map.containsKey(tmp)) {
seq++;
tmp = key + "(" + seq + ")";
}
key = tmp;
}
map.put(key, layer);
}
return map;
}
@Override
void registerLayer(final PdfOCG layer) {
if (!originalLayersAreRead) {
originalLayersAreRead = true;
readOCProperties();
}
super.registerLayer(layer);
}
public void createXmpMetadata() {
try {
xmpWriter = createXmpWriter(null, reader.getInfo());
xmpMetadata = null;
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
protected HashMap getNamedDestinations() {
return namedDestinations;
}
protected void updateNamedDestinations() throws IOException {
PdfDictionary dic = reader.getCatalog().getAsDict(PdfName.NAMES);
if (dic != null)
dic = dic.getAsDict(PdfName.DESTS);
if (dic == null) {
dic = reader.getCatalog().getAsDict(PdfName.DESTS);
}
if (dic == null) {
dic = new PdfDictionary();
PdfDictionary dests = new PdfDictionary();
dic.put(PdfName.NAMES, new PdfArray());
dests.put(PdfName.DESTS, dic);
reader.getCatalog().put(PdfName.NAMES, dests);
}
PdfArray names = getLastChildInNameTree(dic);
for (Object name : namedDestinations.keySet()) {
names.add(new PdfString(name.toString()));
names.add(addToBody(namedDestinations.get(name), getPdfIndirectReference()).getIndirectReference());
}
}
private PdfArray getLastChildInNameTree(PdfDictionary dic) {
PdfArray names;
PdfArray childNode = dic.getAsArray(PdfName.KIDS);
if (childNode != null) {
PdfDictionary lastKid = childNode.getAsDict(childNode.size() - 1);
names = getLastChildInNameTree(lastKid);
} else {
names = dic.getAsArray(PdfName.NAMES);
}
return names;
}
static class PageStamp {
PdfDictionary pageN;
StampContent under;
StampContent over;
PageResources pageResources;
int replacePoint = 0;
PageStamp(PdfStamperImp stamper, PdfReader reader, PdfDictionary pageN) {
this.pageN = pageN;
pageResources = new PageResources();
PdfDictionary resources = pageN.getAsDict(PdfName.RESOURCES);
pageResources.setOriginalResources(resources, stamper.namePtr);
}
}
}
