EaseUS PDF Editor offers a complete set of PDF-editing tools to add edits to PDF files on your Mac quickly and easily, and it even converts scanned documents to text. Edit texts with format ...

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.

You don't need to buy an expensive program to add comments or notes to a PDF. Here's how to use Apple's built-in application, Preview, to do it all.

You can save a OneNote notebook as a PDF, but if you update the notebook, those changes will not be reflected in the PDF.