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.

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

In iOS, Apple's stock Files app is a handy place for keeping PDF documents on your iPhone or iPad. Not only can you view and organize your documents in the Files app, but it also provides you with ...