Using a little-known trick, you can take almost any secured PDF and "unlock" it for further edits and optical character recognition.

A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive ...

Learn how to use one of Word 2013's most asked-for features: how to open and edit a PDF file in Word.

Click "File," then click "Save" on the menu bar to save the PDF document after editing it. Alternatively, click the "Floppy disk" icon on the toolbar to save the file.

Our Verdict Kofax Power PDF 5 makes it easy to edit, annotate, and secure PDF documents but you have to spend a little more for the advanced version to unlock all its capabilities.