pdfshuffler: not capable to export PDFs

[Alexander Kallenbach]

Binary package hint: pdfshuffler

I wanted to cut of some pages of this PDF:

http://www.initiatived21.de/wp-content/uploads/2010/06/NONLINER2010.pdf

Then I wanted to export it again to a pdf. Clicking on "Save" does nothing, even clicking on "Cancel" does nothing. I get no error message. It just doesn't work.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: pdfshuffler 0.5-2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Fri Apr 29 10:50:55 2011
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=de_DE:en
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: pdfshuffler
UpgradeStatus: Upgraded to natty on 2011-04-19 (9 days ago)

[Alexander Kallenbach (kallenbachalex)]

Here is the terminal output:

Traceback (most recent call last):
  File "/usr/bin/pdfshuffler", line 411, in choose_export_pdf_name
    self.export_to_file(file_out)
  File "/usr/bin/pdfshuffler", line 434, in export_to_file
    if (pdfdoc_inp.decrypt('')!=1): # Workaround for lp:#355479
  File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 794, in decrypt
    return self._decrypt(password)
  File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 803, in _decrypt
    raise NotImplementedError, "only algorithm code 1 and 2 are supported"
NotImplementedError: only algorithm code 1 and 2 are supported

[Fritz Heinrichmeyer (fritz-heinrichmeyer)]

same here, looks like a bug in pypdf

[Fritz Heinrichmeyer (fritz-heinrichmeyer)]

forget my "same here", one document i wanted to merge was protected so it is intended that merging fails

[Fritz Heinrichmeyer (fritz-heinrichmeyer)]

after getting a not protected document pypdf/pdfshuffler worked.

pdfshuffler should catch such errors in some way and not simply hang.

[logari81 (logari81)]

now we show an error message at least:
http://pdfshuffler.svn.sourceforge.net/viewvc/pdfshuffler?view=revision&revision=54

[Patrick (patrrtn)]

I got the same problem (Ubuntu 10.04) and found very useful Fritz's comment.
The files I wanted - actually needed - to merge had the "document assembly" property set to "not allowed", as shown by Acrobat Reader in file/properties/security.
An ugly but useful workaround, implied in Fritz's comment, is therefore 1) print the protected files on a pdf printer and 2) then work with pdfshuffler on the resulting files.
It worked for me.

[candela (candelapotente)]

Thanks! I also found Fritz's comment very useful. I followed these instructions and solved the problem: http://www.codingbeaver.com/myblog/index.php/2010/01/11/how-to-remove-pdf-files-print-protection/