[PDFBOX-5067] make PDVisibleSignDesigner memory aware

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.23
• Component/s: Signing
• Flags: Patch
• Assignee: Unassigned
• Reporter: Ralf Hauser
• Created: 03/Jan/21 11:01
• Updated: 08/Jan/21 12:38

Description

PDFBOX-2512 might have failed earlier if I hadn't used

  MemoryUsageSetting.setupMixed(15000000)

to limit the memory usage of PDDocument document to 15 MB in CreateVisibleSignature in

 

a) setVisibleSignDesigner() and used the now memory-aware constructor of PDVisibleSignDesigner

    and

b) in signPDF(), reused PDDocument

   setTsaUrl(tsaUrl);
   PDDocument doc = null;
   if (null != visibleSignDesigner)

{        doc = visibleSignDesigner.getDocument();    }

   if (null == doc)

{       doc = Loader.loadPDF(inputFile, memoryUsageSetting);    }

   // creating output document and prepare the IO streams.
   ...