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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2017/07/06 16:36:00 UTC
[jira] [Resolved] (PDFBOX-3852) Overlay a pdf file which is 750
pages ends up in OutOfMemoryError
[ https://issues.apache.org/jira/browse/PDFBOX-3852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-3852.
-------------------------------------
Resolution: Fixed
Thanks for the feedback and for the report, which helped find a small and a huge bug! Set to resolved.
> Overlay a pdf file which is 750 pages ends up in OutOfMemoryError
> -----------------------------------------------------------------
>
> Key: PDFBOX-3852
> URL: https://issues.apache.org/jira/browse/PDFBOX-3852
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.6
> Environment: Unbuntu, jetty
> Reporter: ryuukei
> Assignee: Tilman Hausherr
> Labels: Overlay
> Fix For: 2.0.7, 3.0.0
>
> Attachments: 750-pages.pdf, McAfee.pdf, Overlay.patch, watermarked.pdf
>
>
> We found an issue and solution to fix it, you guys might would be interested to have a look and see whether it is worth applying the attached patch to benefit more pdfbox users. :-) And a bit more detail this error happens based on jetty running time memory setting, and pdf file size.
> * Application platform:
> Unbuntu, jetty
> * The test case to produce this issue:
> Add simple overlay to all pages (in this case it is 750 pages). The processPages function eats up the JVM memories while applying the overlay to the file.
> * sample code for using pdfbox overlay:
> {code}
> PDDocument document = PDDocument.load( pdf );
> HashMap<Integer, String> overlayGuide = new HashMap();
> for (int i = 0; i < pagenunber; i++)
> {
> // "watermarked.pdf" meat to be a file which contains watermarks on the page
> overlayGuide.put(i+1, "watermarked.pdf");
> }
> Overlay overlay = new Overlay();
> overlay.setInputPDF( document );
> overlay.setOverlayPosition( Overlay.Position.FOREGROUND );
> PDDocument overlayResult = overlay.overlay( overlayGuide );
> {code}
> * Error log:
> {code}
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | java.lang.OutOfMemoryError: Java heap space
> STATUS | wrapper | main | 2017/07/03 13:06:23 | Filter trigger matched. Restarting JVM.
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.io.ScratchFile.<init>(ScratchFile.java:128)
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.io.ScratchFile.getMainMemoryOnlyInstance(ScratchFile.java:143)
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.cos.COSStream.<init>(COSStream.java:55)
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.multipdf.Overlay.createStream(Overlay.java:***)
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.multipdf.Overlay.processPages(Overlay.java:364)
> INFO | jvm 1 | main | 2017/07/03 13:06:23 | at org.apache.pdfbox.multipdf.Overlay.overlay(Overlay.java:128)
> {code}
> * Solution
> Apply MemoryUsageSetting to Overlay, allows Overlay to use file as temp output.
> * Update for the Overlay usage:
> {code}
> PDDocument document = PDDocument.load( pdf );
> HashMap<Integer, String> overlayGuide = new HashMap();
> for (int i = 0; i < pagenunber; i++)
> {
> overlayGuide.put(i+1, "watermarked.pdf");
> }
> Overlay overlay = new Overlay();
> overlay.setInputPDF( document );
> overlay.setOverlayPosition( Overlay.Position.FOREGROUND );
> // set overlay to use temp file as out rather than memory
> MemoryUsageSetting memoryUsageSetting = MemoryUsageSetting.setupTempFileOnly( );
> memoryUsageSetting.setTempDir( new File ( "someTempWorkingDir" ) );
> overlay.setMemoryUsageSetting( memoryUsageSetting );
> PDDocument overlayResult = overlay.overlay( overlayGuide );
> {code}
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