Advanced PDF Protector

Advanced PDF Protector is a comprehensive software application made to restrict the access of other users to your PDF documents by protecting them with passwords and managing permissions.

Although it may sound complicated to work with, this tool is actually quite intuitive. It shows all options in the main application window and lets you follow six simple steps to get the job done in no time.

The installation procedure is fast, and the interface is user-friendly. You can select the input directory with multiple PDFs, since batch processing is supported, or add individual PDFs instead.

The software program lets you select the output PDF version (1.4, 1.5, 1.6 or 1.7), set user and owner passwords, as well as manage permissions when it comes to allowing or denying high or low resolution printing, content copying or accessibility, commenting, form field fill-in or signing, and document assembly or changing.

After you establish the output directory on the disk, you can ask the tool to immediately assign the given passwords and security permissions. Worth noting is that new PDF files are created with the new settings, so the old ones remain unchanged. You don't have to worry about creating backups in case something goes wrong.

Advanced PDF Protector finished PDF processing jobs rapidly in our tests, without triggering the operating system to hang, crash or display error messages. It left a small footprint on system performance, running on low CPU and RAM.

Although it hasn't been recently updated, this software application proves to be a reliable assistant for password-protecting PDF files and setting user permissions.