Need to add text to a PDF that doesn't support editing? No problem -- and no extra software required.

Just like how you add inked signatures on a hard-paper document, you can also add an electronic signature to your PDF document in the Edge browser.

You can combine multiple PDF files into a single, easy-to-share document using simple software on your Mac computer or Windows PC. Here's how.

You can upload a file on Google Forms, allowing you to add an image or video to supplement your survey, quiz, or sign-up sheet.

Launch Adobe Acrobat Reader Click on the Open File option in the Home menu to browse and select your PDF document to add it The PDF document will open up in a separate tab.

How the creator of a PDF file sets up her document determines the extent to which you can use Acrobat Reader's commenting tools to mark the file with notes about its content.