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?
