PDF Password Cracker Expert is a simple program that can be used to recover the contents of encrypted PDF files. The interface is over-simplified to provide good function visibility, and it also makes the app easy to use. You can see most of the options from the start, and the remaining options are stored in tabs in the upper bar. The program works faster if you know the parameters of the password, so you can try it first.
The program has 5 different attack types and is recommended to use a combination of them for maximum success. Besides attempting all possible password combinations, the software also supports special characters, duplicate, reverse, reflect, and replace specific characters. Its interface is very user-friendly, and it's recommended for all users, regardless of their experience. You can easily stop the program at any point and resume it when you're ready.
PDF Password Cracker Expert also supports multiple dictionary files and is multilingual. It can be run from Windows Explorer by selecting a PDF document and running the software. It can decrypt PDF files with up to 40/128-bit encryption, and it works with versions 1.2 through 1.4. It is multi-threaded, and it has a number of options that make the software more efficient when it comes to cracking PDF passwords.