vakhtang koroghlishvili created PDFBOX-1780:
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             Summary: previous revision is damaged after signing
                 Key: PDFBOX-1780
                 URL: https://issues.apache.org/jira/browse/PDFBOX-1780
             Project: PDFBox
          Issue Type: Bug
          Components: Parsing, Signing, Writing
    Affects Versions: 1.8.2
            Reporter: vakhtang koroghlishvili
            Priority: Critical
         Attachments: original-signed -[FIXED].pdf, original-signed 
[DAMAGED].pdf, original-signed [ORIGINAL].pdf

Ihave PDF file which was signed by some other application. When I try to sign 
it with PDFbox, previous revision is damaged. 

I have discussion at stackoverflow, with Michael Klink.

http://stackoverflow.com/questions/19903884/pdf-document-is-modified-by-another-revision/19905271?noredirect=1#19905271

when we see some changes merely was structural. Some changes was just rounding 
problem   - ISSUE 1778.

When I test,  problem of damaged signature was  caused from structural change 
[where there must be direct reference, there was indirect reference and etc..]

So we solve that problem. I will upload damaged PDF document,  fixed pdf, and 
the patch too.




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