Bug 54781

Summary: Support encrypted pdf files in pdfseparate
Product: poppler Reporter: Matthew Lenz <matthew>
Component: utilsAssignee: poppler-bugs <poppler-bugs>
Status: RESOLVED FIXED QA Contact:
Severity: enhancement    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: separate also encrypted PDF

Description Matthew Lenz 2012-09-11 15:38:20 UTC 
I have a pdf that pdfseparate (0.20.1 and 0.20.4) doesn't like (complains that it is encrypted but it isn't) but pdftoppm processes just fine.

Using the following commmands:

FAILS
pdfseparate cruise-docs.pdf export-%d.pdf

WORKS
pdftoppm -r 300 cruise-docs.pdf export

PDF:

https://www.box.com/s/12rqgsxf94f0ibcm5t5h
Comment 1 Albert Astals Cid 2012-09-11 17:47:06 UTC 
The document is encrypted by the PDF speak and that makes it not supported by pdfseparate, there is no bug here, just a missing feature
Comment 2 Matthew Lenz 2012-09-11 17:55:01 UTC 
(In reply to comment #1)
> The document is encrypted by the PDF speak and that makes it not supported by
> pdfseparate, there is no bug here, just a missing feature

"by the PDF speak"?  What is that? :)
Comment 3 Albert Astals Cid 2012-09-11 18:07:58 UTC 
by the PDF speak -> "in the PDF language" -> "in the PDF specification", etc etc

Just open the pdf file with a text editor and see how it says 
/Encrypt 44 0 R


That means the PDF is encrypted (even if it does not ask for a password since the password is "")
Comment 4 Thomas Freitag 2012-09-14 13:17:52 UTC 
Created attachment 67154 [details] [review]
separate also encrypted PDF

The patch based on Fabio's support to save encrypted files, so thanks to Fabio!
Comment 5 Albert Astals Cid 2012-09-16 15:13:06 UTC 
Move the code you added to XRef::XRef(Object *trailerDictA) to XRef::init ?
Comment 6 Thomas Freitag 2012-09-16 17:04:59 UTC 
(In reply to comment #5)
> Move the code you added to XRef::XRef(Object *trailerDictA) to XRef::init ?

Sounds reasonable, but then we need to regtest it, don't we? The methods I changed in XRef.cc are just called by pdfseparate... :-)
Comment 7 Albert Astals Cid 2012-09-17 21:14:08 UTC 
Pushed to master. Will be in poppler 0.22

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