/** Creates the new PDF by merging the fields and forms. */
protected void closeIt() throws IOException {
for (int k = 0; k < readers.size(); ++k) {
readers.get(k).removeFields();
}
for (int r = 0; r < readers.size(); ++r) {
PdfReader reader = readers.get(r);
for (int page = 1; page <= reader.getNumberOfPages(); ++page) {
pageRefs.add(getNewReference(reader.getPageOrigRef(page)));
pageDics.add(reader.getPageN(page));
}
}
mergeFields();
createAcroForms();
for (int r = 0; r < readers.size(); ++r) {
PdfReader reader = readers.get(r);
for (int page = 1; page <= reader.getNumberOfPages(); ++page) {
PdfDictionary dic = reader.getPageN(page);
PdfIndirectReference pageRef = getNewReference(reader.getPageOrigRef(page));
PdfIndirectReference parent = root.addPageRef(pageRef);
dic.put(PdfName.PARENT, parent);
propagate(dic, pageRef, false);
}
}
for (Map.Entry<PdfReader, IntHashtable> entry : readers2intrefs.entrySet()) {
PdfReader reader = entry.getKey();
try {
file = reader.getSafeFile();
file.reOpen();
IntHashtable t = entry.getValue();
int keys[] = t.toOrderedKeys();
for (int k = 0; k < keys.length; ++k) {
PRIndirectReference ref = new PRIndirectReference(reader, keys[k]);
addToBody(PdfReader.getPdfObjectRelease(ref), t.get(keys[k]));
}
} finally {
try {
file.close();
// TODO: Removed - the user should be responsible for closing all PdfReaders. But, this
// could cause a lot of memory leaks in code out there that hasn't been properly closing
// things - maybe add a finalizer to PdfReader that calls PdfReader#close() ??
// reader.close();
} catch (Exception e) {
// empty on purpose
}
}
}
pdf.close();
}
/** extracts attachments from PDF File */
@SuppressWarnings("unchecked")
protected Map extractAttachments(PdfReader reader) throws IOException {
Map fileMap = new HashMap();
PdfDictionary catalog = reader.getCatalog();
PdfDictionary names = (PdfDictionary) PdfReader.getPdfObject(catalog.get(PdfName.NAMES));
if (names != null) {
PdfDictionary embFiles =
(PdfDictionary) PdfReader.getPdfObject(names.get(new PdfName("EmbeddedFiles")));
if (embFiles != null) {
HashMap embMap = PdfNameTree.readTree(embFiles);
for (Iterator i = embMap.values().iterator(); i.hasNext(); ) {
PdfDictionary filespec = (PdfDictionary) PdfReader.getPdfObject((PdfObject) i.next());
Object fileInfo[] = unpackFile(reader, filespec);
if (fileMap.containsKey(fileInfo[0])) {
throw new RuntimeException(DUPLICATE_FILE_NAMES);
}
fileMap.put(fileInfo[0], fileInfo[1]);
}
}
}
for (int k = 1; k <= reader.getNumberOfPages(); ++k) {
PdfArray annots = (PdfArray) PdfReader.getPdfObject(reader.getPageN(k).get(PdfName.ANNOTS));
if (annots == null) {
continue;
}
for (Iterator i = annots.getArrayList().listIterator(); i.hasNext(); ) {
PdfDictionary annot = (PdfDictionary) PdfReader.getPdfObject((PdfObject) i.next());
PdfName subType = (PdfName) PdfReader.getPdfObject(annot.get(PdfName.SUBTYPE));
if (!PdfName.FILEATTACHMENT.equals(subType)) {
continue;
}
PdfDictionary filespec = (PdfDictionary) PdfReader.getPdfObject(annot.get(PdfName.FS));
Object fileInfo[] = unpackFile(reader, filespec);
if (fileMap.containsKey(fileInfo[0])) {
throw new RuntimeException(DUPLICATE_FILE_NAMES);
}
fileMap.put(fileInfo[0], fileInfo[1]);
}
}
return fileMap;
}
/**
* Add an imported page to our output
*
* @param iPage an imported page
* @throws IOException , BadPdfFormatException
*/
public void addPage(PdfImportedPage iPage) throws IOException, BadPdfFormatException {
int pageNum = setFromIPage(iPage);
PdfDictionary thePage = reader.getPageN(pageNum);
PRIndirectReference origRef = reader.getPageOrigRef(pageNum);
reader.releasePage(pageNum);
RefKey key = new RefKey(origRef);
PdfIndirectReference pageRef;
IndirectReferences iRef = (IndirectReferences) indirects.get(key);
if (iRef != null && !iRef.getCopied()) {
pageReferences.add(iRef.getRef());
iRef.setCopied();
}
pageRef = getCurrentPage();
if (iRef == null) {
iRef = new IndirectReferences(pageRef);
indirects.put(key, iRef);
}
iRef.setCopied();
PdfDictionary newPage = copyDictionary(thePage);
root.addPage(newPage);
++currentPageNumber;
}
/**
* Create a page stamp. New content and annotations, including new fields, are allowed. The fields
* added cannot have parents in another pages. This method modifies the PdfReader instance.
*
* <p>The general usage to stamp something in a page is:
*
* <p>
*
* <pre>
* PdfImportedPage page = copy.getImportedPage(reader, 1);
* PdfCopy.PageStamp ps = copy.createPageStamp(page);
* ps.addAnnotation(PdfAnnotation.createText(copy, new Rectangle(50, 180, 70, 200), "Hello", "No Thanks", true, "Comment"));
* PdfContentByte under = ps.getUnderContent();
* under.addImage(img);
* PdfContentByte over = ps.getOverContent();
* over.beginText();
* over.setFontAndSize(bf, 18);
* over.setTextMatrix(30, 30);
* over.showText("total page " + totalPage);
* over.endText();
* ps.alterContents();
* copy.addPage(page);
* </pre>
*
* @param iPage an imported page
* @return the <CODE>PageStamp</CODE>
*/
public PageStamp createPageStamp(PdfImportedPage iPage) {
int pageNum = iPage.getPageNumber();
PdfReader reader = iPage.getPdfReaderInstance().getReader();
PdfDictionary pageN = reader.getPageN(pageNum);
return new PageStamp(reader, pageN, this);
}
