If you forgot the password that protects one or more of your PDF files, you can either start guessing it and try several passphrases, or you can rely on a dedicated application, like PassFab for PDF.

The software utility is user-friendly and intuitive, making it easy for both novices and experts to load and decrypt their document.

The only way to add your PDF file to the main window of PassFab for PDF is to manually browse to its location. Unfortunately, drag and drop actions are not supported.

Next, you only need to select the decryption method, then wait until the app processes the document.

When using the dictionary decryption method, PassFab for PDF looks for your password in a built-in or customized dictionary file.

If you are not satisfied with the default one, you can easily load a TXT file within the dedicated window, then try and decrypt the PDF.

Another type of decryption method is the brute force with mask, and you can customize several parameters.

For instance, you can adjust the password length (minimum and maximum values are required).

If you remember part of your password, you can restrict the lowercase and uppercase letters that should be used in searching the password, as well as the numbers and the special characters.

Additionally, you can specify the prefix and the suffix.

In a nutshell, PassFab for PDF can be used by all users who forgot the password they used to protect the contents of their PDF documents.

Only one file can be decrypted at a time, and the entire process might take a long time to complete, especially if you go for the brute force attack that tries all possible combinations.