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 content safe, ...

The Adobe PDF format allows businesses to create documents from virtually any application and share them whether the recipient has the program that created the file or not. If you have PDFs you ...

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