You'll have to throw more memory at the jvm. More pages require more memory
even if all that it's kept in memory is references to the page addresses.
Paulo
----- Original Message -----
From: "dhyton" <[EMAIL PROTECTED]>
To: <itext-questions@lists.sourceforge.net>
Sent: Friday, October 05, 2007 6:36 PM
Subject: [iText-questions] Out of memory when concatenating -- I have read
the previous threads
>
> I am having a problem with running out of memory when concatenating files.
> I
> did search the issues and have found no solution. Below is my code. The
> output steam that is passed into the method for testing is a
> FileOutputStream. I am currently using itext 1.3 but I tested and had the
> same issue with the latest release. You can see I use a PDFCopy and do not
> keep any references to the reader around.
>
> The heap seems to grow very quickly.
>
> Can you please help?
> Thanks
> David
>
> public static void assembleOnLargePDF(Rectangle pageSize, OutputStream
> sos, File jobDir, boolean paper, boolean preview, List<String>
> householdIDs)
> throws DocumentException, IOException
> {
>
> Runtime runtime = Runtime.getRuntime();
> System.gc();
>
> System.out.println("Starting Process " + runtime.freeMemory() + "
> of
> " + runtime.maxMemory());
> Document allHHDocument = new Document(pageSize, 0, 0, 0, 0);
> PdfCopy allHHCopy = new PdfCopy(allHHDocument, sos);
>
> allHHDocument.open();
> int count = 0;
> for(String householdID : householdIDs)
> {
> System.gc();
> System.out.println("Starting HH " + (count) + " " +
> runtime.freeMemory());
>
> FileInputStream fileInputStream;
> try
> {
> File file = new File(jobDir, householdID + ".pdf");
> if(file.exists()) fileInputStream = new
> FileInputStream(file);
> else continue;
> }
> catch(FileNotFoundException e)
> {
> continue;
> }
> PdfReader r = null;
> try
> {
> r = new PdfReader(fileInputStream);
> int numberOfPages = r.getNumberOfPages();
> for(int j = 1; j <= numberOfPages; j++)
> {
> allHHCopy.addPage(allHHCopy.getImportedPage(r, j));
>
> }
>
> allHHCopy.freeReader(r);
>
> sos.flush();
> }
> finally
> {
> if(r != null)
> r.close();
> fileInputStream.close();
> }
> System.gc();
>
> System.out.println("Ending HH " + (count++) + " " +
> runtime.freeMemory());
> }
> allHHDocument.close();
> allHHCopy.close();
> System.gc();
> System.out.println("Ending Process " + runtime.freeMemory());
>
> }
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