How to Add Comments to a PDF With Acrobat Reader. PDF files enable you to share and comment on content created in a wide range of applications. Adobe Reader, formerly called Acrobat Reader, offers ...

Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free Reader program.

Insert Page Numbers in a PDF If you're using Adobe Acrobat to edit a PDF file, you can add page numbers in your preferred style to some or all of the document.