Acrobat Reader, formerly known as Acrobat Reader, is the free download and free application necessary to view and print Adobe PDF (Portable Document Format) files, which is widely used as a way to present information with a fixed layout similar to a paper publication. Adobe Acrobat 7 has been upgraded to Adobe Acrobat 8, and so do the its popular companion software Acrobat Reader, which has been upgraded to version 8 too.