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 ...

In addition to being able to view other document types, users can now take action on Office, PDF, or image files as if they were native Google Drive formats.

Adobe Acrobat Pro’s optical character recognition feature converts scanned documents into editable PDFs. Just click on the Edit PDF tool to create a fully editable copy with searchable text.