Open the PDF in Acrobat. Go to File, then click “Protect Using Password.” You can set the password only for editing the PDF, or for viewing it. Type your password ...

If you already have Adobe Acrobat installed on your PC, it is the best method to protect a PDF file. You can get a free trial of Adobe Acrobat if you don’t already ...

At some point you’ll likely need to send someone a file that contains sensitive information, such as tax information, financial details, your Social Security number, or other confidential data.

Maybe there was a time when you wanted to lock away certain pages in a PDF, but you didn’t have the tools to get it done. Well, those days are over due to the release of an interesting software known ...