[jira] [Assigned] (PDFBOX-4261) Invalidated signature signing pdf twice

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-4261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr reassigned PDFBOX-4261:
---------------------------------------

    Assignee: Tilman Hausherr

> Invalidated signature signing pdf twice 
> ----------------------------------------
>
>                 Key: PDFBOX-4261
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4261
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Signing
>    Affects Versions: 1.8.15
>            Reporter: Claudio Tortorelli
>            Assignee: Tilman Hausherr
>            Priority: Major
>             Fix For: 1.8.16
>
>         Attachments: issue_data.zip
>
>
> A customer sent us a pdf that has this problem: when it is signed twice by *pdfbox 1.8.x* the second signature invalidates the first one.
> If we apply the same procedure using *pdfbox 2.0.x* the problem doesn't occur, but the customer required java 1.5 so we can't switch to the new version in this case.
> For +privacy purposes+ we had anonymized the original PDF file by editing 3 stream inside the pdf, without altering the original structure. So the file "92752146_noSign_anonymous.pdf" you can find in attachement has not the original text/image streams, but reproduces the problem as the original one.
> Thank you in advance
>  



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