Adobe Reader (formerly Acrobat Reader), is available as freeware and can be downloaded from Adobe’s web site. Adobe Reader enables users to view and print PDF(Portable Document Format) files but has negligible PDF creation capabilities.
Adobe Reader X
The new version is the low-end PDF reader simply keeping up with Acrobat Professional and Standard. This has the ability to play back embedded multimedia files in MP3, QuickTime, Macromedia Flash, Real, and Windows Media formats, as well as to submit Adobe PDF forms. It also replaces some of the icons in the default interface with optional, dockable toolbars.
Adobe Reader X mobile app work with PDF files on your Android smartphones and tablets with easy access, manage, and share a wide variety of PDF file types, including PDF Portfolios, password-protected documents, fillable forms, and Adobe LiveCycle rights-managed PDF files.