Worth noting is that, when the application successfully decrypts a PDF document, it doesn't reveal the password. If you apply brute force attack, you can set the exact length or minimum and maximum number of characters, as well as choose the type of characters between letters (both upper and lower case), numbers, letters and numbers, or a custom set (just enter the characters you want to randomly combine to find out the secret code). In case of dictionary, you can load the existing text document from Free PDF Unlocker's installed directory to try all words, or create a new text file from scratch and enter what you think could be the correct password (one word per line). Otherwise, go to the settings tab and choose the decryption mode between dictionary and brute force. If you already know the password and only wish to lift it from the protected documents, then you can enter it and tell the tool where you want to save the new, unprotected files. You can add multiple PDFs to the task list if you want the tool to process all of them as the same time. The program's packed in a user-friendly interface made from a single window split into two panes: for unlocking PDFs and for configuring settings.

NET Framework installed on your PC, since it cannot work without it. To be able to launch this tool, make sure you have. It may help you recover important data instead of deleting the files forever. Free PDF Unlocker is an intuitive application you can use to unlock encrypted PDF files by specifying the correct password, as well as to apply force and try to decrypt the PDFs if you have misplaced or forgotten the secret code.

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