PDFs are one of the most widely used file formats in education, business, and everyday digital life. But what happens when you need to add comments, annotations, or reminders to a PDF? Whether you’re ...

We show you how to add notes to a PDF with Microsoft Edge, Adobe Acrobat Online, and the free PDF viewer UPDF.

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.

Wondering how to edit a PDF on a Mac? Want to do it for free? You can! There is a free PDF editor built right into MacOS and it's really easy to use. We show you how to edit a PDF on a Mac, plus ...

You can import and add a PDF to OneNote as a file attahcment or printout image, or convert and add PDF to OneNote. Here's how!

In keeping with most of macOS Sonoma, Apple has only added minor updates to using PDFs in Notes — but you'll never want to go back.