Leonard Rosenthol <leonardr <at> pdfsages.com> writes:

> 
> Greg - you are correct that iText (nor any other 3rd party PDF  
> Library) is 

not?

> able to open PDF documents encrypted with LiveCycle Rights  
> Management server (formerly Policy Server).  It is an extra encryption  
> handler that is private to Adobe - just as others like FileOpen,  
> LockLizard, etc. have implemented their own private encryption schemes  
> for PDF.
> 

iText can handle the "Standard" security handler just fine.  Anything else (such
as the ones Leonard listed)... iText takes one look and says "not Standard,
can't help ya".  

Sounds like the exception it throws could be a little more informative.

It's possible to implement other security handlers within iText, but you'd have
to know how they actually work to pull that off.  Adobe isn't telling.

PS: You can create an "opaque" security handler by simply renaming the standard
one... maybe throw in an XOR somewhere.  Then only people with your special code
(not hard to write a security handler plugin for Acrobat, IIRC there was a
sample in the SDK), can open your files.

--Mark Storer
  Senior Software Engineer
  Cardiff.com

#include <disclaimer>
typedef std::disclaimer<Cardiff> Discard;


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