PDF Encrypter

PDF Encrypter is a practical software application that gives you the possibility to password-protect PDF documents, in order to restrict the access of other users. It also lets you manage user permissions.

Easy setup and clear-cut interface

Installing this utility is fast and simple, thanks to the fact that the wizard contains only familiar steps. PDF Encrypter is packed in a user-friendly interface, represented by a large window with a well-structured layout.
An integrated file browser lets you explore disk folders to locate the PDF documents you want to encrypt. Batch processing is featured, so you can password-protect multiple PDFs at the same time. Buttons for selecting and deselecting all files are available.

Encrypt PDFs and manage user permissions

It's possible to pick the destination directory and preserve the original folder structures, apply an owner 40-bit or 128-bit password, as well as edit the user key and administer permissions when it comes to copying, modifying, printing, form filling, annotations, accessibility, document assembly, and high resolution print. Plus, the tool can be asked to delete the original items and to open the output directory on task completion.

Evaluation and conclusion

The app carried out encryption tasks swiftly while remaining light on system resources, since it required low CPU and RAM to function normally. No error dialogs popped up and it didn't freeze or crash.
Too bad that it hasn't been updated for a long time. Otherwise, PDF Encrypter gets the job done, enabling you to seamlessly password-protect multiple PDF docs at the same time.