iText can't do any better. At most you'll have two docs in memory but it still needs space to keep the xrefs from all the added docs. This is not like postscript where streaming out a doc after the other is all that's needed.
Best Regards, Paulo Soares > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Sergey Chumakov > Sent: Wednesday, March 17, 2004 2:26 PM > To: [EMAIL PROTECTED] > Subject: [iText-questions] Problem with merging a large set of PDFs > > Hello All, > > I'm developing an application that should merge a set of PDF. The > problem is that I get an java.lang.OutOfMemoryError > exception. I tried > to increase the max JVM heap size (java -Xmx???), it helps > but I think > it isn't a good solution because I do never know how many > PDFs are used > and how much memory it needs. > > Is it possible I do something wrong? Below is the most important and > "gluttonous" part of my application. Thanks. > > > Document document = null; > PdfCopy writer = null; > int pageOffset = 0; > ArrayList master = new ArrayList(); > FileOutputStream os = new FileOutputStream(strOutFile); > > for (int i = 0; i < file_list.length; ++i) { > PdfReader reader = new PdfReader(file_list[i].getName()); > int n = reader.getNumberOfPages(); > List bookmarks = SimpleBookmark.getBookmark(reader); > if (bookmarks != null) { > if (pageOffset != 0) > > SimpleBookmark.shiftPageNumbers(bookmarks, pageOffset, null); > master.addAll(bookmarks); > } > pageOffset += n; > if (i == 0) { > document = new > Document(reader.getPageSizeWithRotation(1)); > writer = new PdfCopy(document, os); > document.open(); > } > > PdfImportedPage page; > for (int j = 0; j < n;) { > ++j; > page = writer.getImportedPage(reader, j); > writer.addPage(page); > } > > PRAcroForm form = reader.getAcroForm(); > if (form != null) > writer.copyAcroForm(reader); > > writer.flush(); > } > > if (document != null) { > if (master.size() > 0) > writer.setOutlines(master); > document.close(); > } > > > -- > Best regards, > Sergey Chumakov 2:450/77[.43] > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > iText-questions mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/itext-questions > > ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=click _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions
