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.

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.

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. & ...