Work-in-progress projects usually contain info that is not meant for the public eye, and that is reason enough to take precautions against unwanted intrusions of this sort.

PDF Password Lock Free is a program that can provide you with some help if the project you are involved in is included in a PDF you want to password-protect.

First off, it must be noted that the application features a user-friendly GUI that requires very little time to get accustomed to, regardless of your level of experience.

All you need to do in order to start protecting your PDF file is indicate the document’s location as well as an owner and user password. Then, you can restrict the interaction the recipient has with your PDF, with the possibility of allowing or refusing printing, modifying content, copying, and more.

The next step you need to take is select the encryption method, with AES 256, AES 128, Standard 128, and Standard 40 being your alternatives. Once you click the “Protect” button, you can indicate an output location as well as a name for your new file since the old one remains in its original state.

In case you want to revert the process, you can do that as well with the help of this tool. You simply need to select the locked PDF file, type in the owner password, then save the new and restrictions-free document to a location of your choice.

Other than that, the program also integrates password recovery tools meant to decrypt PDFs that are currently inaccessible. Note that there are multiple approaches you can take to the task. You may give the app a helping hand by narrowing down the results of the search action if you indicate the type of characters the password contains as well as the passphrase’s length.

A dictionary attack can also be employed while resorting to custom variants is another options. Regardless of your choice, the status of the task is displayed at the bottom of the main window.

All in all, PDF Password Lock Free is a handy software utility helping you add a security layer to sensitive data included in PDF files, all without asking for considerable tech skills. Given the fact that it also enables you to unlock password-protected documents, the tool could prove helpful in various situations.