07/24/2007 Utilities

Registration Window :

The demo version of PDF Password Cracker Pro is a fully functional product with all features required for testing available. After you are convinced that the program fits your needs, you are strongly encouraged to purchase and register your copy of the software by acquiring a personal unlock key, the demo version is can only decrypt the first half pages of your original PDF file.

In your evaluate period, you may click “Try” button to try this software.

Main interface of the software:

Load: Open PDF file for retrieve password.

Decrypt: Decrypt current PDF file.

Type of attack:

Brute-force: Brute force attack for PDF file.

Dictionary: Construct user password from a dictionary file.

Key search: Search file key for a 40-bit encryption PDF file, the key length is 40 bits, so the total number of keys is 2^40, or 1,099,511,627,776, the whole recovery process takes about 30 days on PIII-450 computer, and the average is just 15 days.

All caps latin (A-Z): ABCDEFGHIJKLMNOPQRSTUVWXYZ

All small latin (a-z): abcdefghjiklmnopqrstuvwxyz

All digits (0-9): 0123456789

User defined characters: User defined characters for construct passwords

Minimal password length: Minimal length for passwords.

Maximal password length: Maximal length for passwords.

Start from: First password to be tried.

End at: Last password to be tried.

Dictionary file path: Load a dictionary file for dictionary attack.

Try all possible upper/lower case combinations: Construct passwords from dictionary file automatically.

Open the PDF Password Cracker Pro program by either going to Programs, select PDF Password Cracker Pro v3.0 and click PDF Password Cracker Pro v3.0. The interface below will display. Click the "Load" button to locate the file which you would like to remove the passwords, then click the "Open" button. Click the "Decrypt" button or "Start" button, then PDF Password Cracker Pro will test the passwords for your PDF file automatically. Once PDF Password Cracker Pro retrieved the user password, it will popup a "Save As" dialog, you may save to a normal PDF file directly, all restrictions will be removed from this decrypted PDF file.