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

Need to learn how to password protect a PDF from prying eyes? Here's a step-by-step guide on how to do just that in both Windows and MacOS using various tools.

Do you share PDF files with other people? Here's how to password protect a PDF on Windows for protection against unauthorized access, editing, and printing.

Add Password-Protection to a PDF Using a Free App The easiest way to password-protect a PDF is to use one of the many free PDF editing apps.

To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.

How to password-protect a PDF before e-mailing in OS X With a few steps you can set up an easy way to encrypt PDF files generated from the standard print dialog window.

Do you share PDF documents with people? Here's a guide on how to password protect a PDF on Mac to protect it from unauthorized access, editing, and printing.