How to encrypt a PDF on Mac OS Preview, the Mac OS application that opens most popular file types, has many bonus features for modifying documents. One of them is encrypting PDF files.

If you have a confidential PDF you want to password protect, you have a few ways to do that on your Windows 11 PC. You can use a desktop app or a web-based tool to encrypt your PDF files.

If you want to password-protect your PDF documents from outside interference, then maybe you should give PDF Page Lock a test run. It is a free encryption software that lets you easily encrypt PDF ...

Sending important documents? Learn how to password protect PDFs for extra security using easy steps with Adobe Acrobat and free online tools.

With a few steps you can set up an easy way to encrypt PDF files generated from the standard print dialog window.

Have a private document on your desktop OS? Here's how to keep it secure on Linux, MacOS, and Windows.

With WowTron PDF Encryption users can add password to pdf document quickly and without any hassle. As we all know owner and user passwords are usually used to encrypt PDF document.

Whether you use Windows Pro's built-in Bitlocker or the free Veracrypt utility, encrypting a file, folder, or drive is an easy way to keep your sensitive documents secure.