[PDFBOX-4517] Unable to decrypt PDF with String and Stream filter to identity

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.15
• Fix Version/s: 2.0.16, 3.0.0 PDFBox
• Component/s: Parsing
• Assignee: Andreas Lehmkühler
• Reporter: Jérôme Joslet
• Created: 17/Apr/19 09:18
• Updated: 28/Jun/19 04:39
• Resolved: 05/May/19 17:41

Description

I receive a PDF that contains the following Encryption Dictionnary:

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

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.

Issue Links

• links to: Adobe Spec describing the identity filter