Need to make notes in a PDF, or perhaps correct a few typos or reorganize the pages? Here are the tools and tips you need.

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

Do you want to open password protected PDF file? This free software can unlock ZIP or PDF file without password free on Windows PC. It works!

How To News: Certain PDF files (like bank statements, credit card bills and phone bills) are not only password protected, but also locked to prevent any changes. & ...