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

Don't let your sensitive data fall into the wrong hands. These tools encrypt important PDFs without the need to spend hundreds of dollars on the full Adobe Acrobat program. At some point you’ll likely ...

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.

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They're also one of the easiest files to secure and encrypt in case you're sending sensitive information. The best part? You can turn just about any text document or image into a PDF. Let's look at ...