How to Password Protect an Existing PDF. Adding password protection to your business' PDF files helps to prevent contents from being viewed or edited by unwanted parties. If your business already ...

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.

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.

The widely used PDF format supports data-saving encryption, allowing you to protect sensitive documents so that only those with the correct password can access them. In the old days, you’d need a ...

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.