PDF files have the option to let you share and comment on documents in a wide range of applications. Adobe Acrobat Reader and other free PDF programs offer a subset of the capabilities of the paid ...

If you want to allow commenting on a PDF file, you must be the author of the file or have access to the Adobe Acrobat program that was used to construct it. Even if you use the most recent version of ...

It seems like Adobe's on a mission as of late to make creating and editing PDFs much simpler. Its latest effort is an expanded partnership with Box, which will offer you more ways to use PDF files in ...