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https://issues.apache.org/jira/browse/PDFBOX-5866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872683#comment-17872683
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ASF subversion and git services commented on PDFBOX-5866:
---------------------------------------------------------

Commit 1919808 from Tilman Hausherr in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1919808 ]

PDFBOX-5866: also truncate the O and U entries for R == 5, as suggested by 
Michael Klink

> Unable to load  password protected pdf
> --------------------------------------
>
>                 Key: PDFBOX-5866
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5866
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Crypto
>    Affects Versions: 2.0.32, 3.0.3 PDFBox
>            Reporter: Charles D
>            Assignee: Tilman Hausherr
>            Priority: Major
>             Fix For: 2.0.33, 3.0.4 PDFBox, 4.0.0
>
>         Attachments: pdfbox_invalid_pwd.pdf
>
>
> PDFBox is unable to load password protected pdf. Error is "Invalid AES key 
> length: 48 bytes."
> Adobe and qpdf are able to successfully open it , but many other applications 
> I've tried are unable to do so.
> The pdf is created by a third party scanner so unfortunately we have no 
> insight/control over its creation. 
> [^pdfbox_invalid_pwd.pdf] . Please let me know the best way to provide the 
> password. 



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