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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-4517) Unable to decrypt PDF with String and Stream filter to identity
Date Sun, 05 May 2019 17:33:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16833423#comment-16833423
] 

ASF subversion and git services commented on PDFBOX-4517:
---------------------------------------------------------

Commit 1858699 from lehmi@apache.org in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1858699 ]

PDFBOX-4517: added test for identity filter as proposed by Jerome Joslet

> Unable to decrypt PDF with String and Stream filter to identity
> ---------------------------------------------------------------
>
>                 Key: PDFBOX-4517
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4517
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Parsing
>    Affects Versions: 2.0.15
>            Reporter: Jérôme Joslet
>            Assignee: Andreas Lehmkühler
>            Priority: Major
>         Attachments: PDFBOX-4517.patch, cryptfilter.pdf
>
>
> I receive a PDF that contains the following Encryption Dictionnary:
> {code:java}
> 32 0 obj
> <</O (Ûýµ\fÁÒIÆ&Îé ^°Â>5N,\\qè¬#O‰2³Ã\b¼5¶ºj;šP)/EFF/StdCF/P
-1852/R 5/OE (Q0Òzªè^À¸ÆÏÝéðnP}‚»Ÿ]ã.y„úŸcúÑ^)/U (ÐT7ŽHib³Ç\t|´_¶ºU¢ŸäNbíà>Ð@¼
½ðï£Xš‘ú-Uz¯L<0ã)/EncryptMetadata false/V 5/Length 256/CF<</StdCF<</AuthEvent/EFOpen/Length
32/CFM/AESV3>>>>/StmF/Identity/Filter/Standard/StrF/Identity/Perms (¶;´—‹€]m¶Ç„ø)/UE
(ºî«Õâk$ô‹f‘Î0¥®e"ªÄ]¬9ÎNï‘1öÓ)>>
> endobj{code}
> and I was unable to open it with PDF Box.
> Unfortunately, I can't share this PDF with you due to customer privacy and I was unable
to find a tool that allow to create such a PDF.
> This kind of encryption is useless I think, but it's probably intersting to support it
anyway. Browsers and Adobe Reader have no problem to open it.



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