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Posted to dev@pdfbox.apache.org by "Adam Nichols (Issue Comment Edited) (JIRA)" <ji...@apache.org> on 2012/02/10 01:53:59 UTC
[jira] [Issue Comment Edited] (PDFBOX-1226) Counting pages of a
PDF gives OutOfMemoryError
[ https://issues.apache.org/jira/browse/PDFBOX-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205123#comment-13205123 ]
Adam Nichols edited comment on PDFBOX-1226 at 2/10/12 12:53 AM:
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There are a few different options here, the easiest and fastest would be to increase the amount of memory available to your JVM. If you need to get code that works straight away, you should go this route.
However, counting pages shouldn't require a lot of memory (nor even reading the entire file for that matter). PDFBOX-1000 is tracking a new parser which isn't done yet, but it might actually be far enough along to count pages (it's been a while since I had the code open). This parser will probably take quite a while to complete, so there's also PDFBOX-1199 which is a shorter term solution. Sorry I can't dig into the code right now and give you a more certain answer. Hopefully the references to the other JIRA issues will be enough to help you out.
Also, if you're not using the getNumberOfPages() method, take a look at PDFBOX-911 for some very simple sample code.
was (Author: adamnichols):
There are a few different options here, the easiest and fastest would be to increase the amount of memory available to your JVM. If you need to get code that works straight away, you should go this route.
However, counting pages shouldn't require a lot of memory (nor even reading the entire file for that matter). PDFBOX-1000 is tracking a new parser which isn't done yet, but it might actually be far enough along to count pages (it's been a while since I had the code open). This parser will probably take quite a while to complete, so there's also PDFBOX-1199 which is a shorter term solution. Sorry I can't dig into the code right now and give you a more certain answer. Hopefully
Also, if you're not using the getNumberOfPages() method, take a look at PDFBOX-911 for some very simple sample code.
> Counting pages of a PDF gives OutOfMemoryError
> -----------------------------------------------
>
> Key: PDFBOX-1226
> URL: https://issues.apache.org/jira/browse/PDFBOX-1226
> Project: PDFBox
> Issue Type: Bug
> Components: PDFReader
> Affects Versions: 1.6.0
> Environment: Windows 7 / Windows XP
> Reporter: Anca Zapuc
> Attachments: Big_no_pages.7z
>
>
> I have a pdf ( 397 MB) and I am trying to count the pages.
> I am able to open the PDF with AdobeReader 9, but no with FoxitReader.
> Code:
> PDDocument doc = null;
> File temp = null;
> RandomAccessFile rand = null;
> int nr = 0;
> try {
> //create a temporary file needed by the PDFBox when dealing with PDFs really really large
> temp = new File("e:/temp.tmp");
> //using random access file needed for PDF really large
> rand = new RandomAccessFile(temp,"rw");
> doc = PDDocument.load(file,rand);
> nr = doc.getNumberOfPages();
> }catch(Exception e){
> e.printStackTrace();
> }
> Got following exception:
> org.apache.pdfbox.exceptions.WrappedIOException
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:240)
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1069)
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1022)
> at PDFBoxExample.getHugeNrOfFiles(PDFBoxExample.java:36)
> at PDFBoxExample.main(PDFBoxExample.java:258)
> Caused by: java.lang.OutOfMemoryError: Java heap space
> at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:45)
> at java.lang.StringBuffer.<init>(StringBuffer.java:79)
> at org.apache.pdfbox.pdfparser.BaseParser.readString(BaseParser.java:1121)
> at org.apache.pdfbox.pdfparser.BaseParser.parseCOSStream(BaseParser.java:402)
> at org.apache.pdfbox.pdfparser.PDFParser.parseObject(PDFParser.java:552)
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:184)
> ... 4 more
> I attached the PDF.
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