Technology blogger Amit Agarwal has written up a simple guide to opening up password-protected PDF documents. Just as a quick disclaimer: this should only be used in appropriate circumstances ...

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

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 ...

How To Remove PDF Password From Mobile? Both Android and iPhone support PDF readers. Plus, there are plenty of apps you can download to access PDF files from Google Play and the App Store.

You can password protect a PDF on a Mac computer using the Preview app to secure files that contain sensitive information.

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