Adobe PDF passwords
Supported Adobe PDF formats and password types
| Version | Permissions password (Master password) |
Document open password (User password) |
|
| Adobe PDF | Acrobat 2-4 (RC4 40-bit) | •* | C |
| Acrobat 5-8 (RC4 128-bit, AES-128) | •* | G | |
| Acrobat 9-DC (AES-256) | •* | C |
•* – instant recovery of the original password starting at the launch of the program.
C – password recovery process involves the computer's CPU. In order to maximize the process of password recovery the program uses codes specifically optimized for the specific CPU.
G – password recovery process involves all video cards installed on the computer.