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Posted to users@pdfbox.apache.org by giancarlo <gc...@gmail.com> on 2009/01/20 09:45:02 UTC

pdf encryption question

Hello folks,

I would like to know the kinds of encryption (and decryption, of course) 
supported by pdfbox.
Assuming that adobe acrobat allows to encrypt pdf files with these 
algorithms:
- 40 bit RC4
- 128 bit RC4
- 128 bit AES
- 256 bit AES (included from acrobat 9, released on 2008, so I don't 
pretend its support)

What of these are supported?