Various PDF software packages enable users to apply password encryption to PDF files. There are also a few ways you can encrypt PDF documents without PDF software. If you don’t know how to ...

Sending a PDF email attachment has become a second-nature standard—but have you ever stopped to consider how to send a PDF securely? Below are the instructions for how to password protect (encrypt) a ...

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.

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.

Protect your sensitive PDF files with the best encryption software tools. Find extra features besides defense against unauthorized access!

We’ve already talked about how you can encrypt files in Evernote. Two of the three methods in that post involved using other programs (one of which is also available on OS X). If you’re on a Mac, ...

Sometimes a PDF needs encryption. Sometimes it doesn't. Here's how and when you can remove unneeded encryption.