[PDFBOX-5068] OutOfMemory while signing large documents - continued

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.23
• Component/s: Signing
• Assignee: Andreas Lehmkühler
• Reporter: Ralf Hauser
• Created: 03/Jan/21 18:33
• Updated: 24/Sep/21 12:27

Description

Continuation of PDFBOX-2512

 

in COSWriter.prepareIncrement(), for the test case cosDoc.getXrefTable().keySet() has size 5925. For each of thes keys, cosDoc.getObjectFromPool() gets an object that is not just referencing some part of the input document, but duplicates it (which is unavoidable in the case where they are decompressed with FlateFilter - albeit this could possibly be done "lazy")

-Xmx20m  746/5925
-Xmx25m 1615/5925
-Xmx30m 2800/5925
-Xmx40m 3872/5925
-Xmx55m 5773/5925

With 60m, it gets them all, but dies later with less telling

   java.lang.OutOfMemoryError: GC overhead limit exceeded

 

This assumes the patch of PDFBOX-5067 already in place - or using CreateVisibleSignature2.java as starting point