Package: pdftk

Version: 1.44-7

Severity: Wishlist


I got an pdf file that could not be opened with pdftk.

pdftk /tmp/q.pdf data_dump
Error: Failed to open PDF file:
   /tmp/q.pdf
Done.  Input errors, so no output created.

Unfortunately, the file contains personal information, so I can not
share it.

The same pdf can be opened with evince and okular (without needing a
password).


Investigating the issue, I found this site:
http://www.thbimage.com/pdf/pdftk_can_t_open_pdf_file_gnr2sr_5lv_1_news_motzarella_org_.html

It describes the same problem, and my file contains also this sequence
".../StrF/StdCF/CF<</StdCF<</CFM/AESV2/AuthEvent/DocOpen/Length
16>>>>/StmF/StdCF/U"
indicating an AES encryption.

The error message is different than in
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=454140
so it's a different bug.

The workaround is, opening the file with okular and printing it to a new
pdf file.
However, it would be great if pdftk could also handle AES encrypted pdf
files in seamless way.


   Alois


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