Advanced PDF Password Recovery Pro 2.12
Decrypt protected Adobe Acrobat PDF files that have user and/or owner passwords set, preventing the file from opening or editing, printing etc 
If only owner password is set the file is being decrypted instantly (so all restrictions are being removed). User password can be recovered using brute-force and dictionary attacks; also, the program supports key attack that allows to decrypt PDF 1.3 files regardless the password length, guaranteed.