An icon in the shape of a lightning bolt. Impact Link It takes about 10 seconds to add password protection to a PDF when you use a Mac's Preview software, and those few seconds you invest could save ...

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

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

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 ...

“Is there any way to password-protect and lock a sensitive PDF file before sending it as an attachment through email? I cannot afford Adobe Acrobat Pro and free primopdf didn’t work for me. Any help ...

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.