Adobe Acrobat Reader is a program that allows users to view, create, print and organize files in Portable Document Format. There are two other software applications in the Acrobat family, which are Adobe Acrobat Standard and Adobe Acrobat Professional.
Adobe Acrobat Reader is the most popular of the three Adobe software programs, and it's available for free online. Adobe Acrobat Standard is used primarily for creating, editing and signing PDF documents. PDF documents can also be created on Microsoft Word, so Adobe Acrobat Standard isn't always needed. Adobe Acrobat Professional includes a suite of other products, including Photoshop, Captivate, Presenter and Media Encoder. Due to all the extra software components included with Adobe Acrobat Professional, it is the most expensive package of all the Adobe programs.
The Portable Document Format, is a universal file format that preserves the appearance of an original document. This file format also allows users to share documents across diverse platforms. PDF files can be printed easily, but it is almost impossible to modify these documents unless the user has a paid version, like Adobe Acrobat Professional. Another benefit of working with PDF files is that they can be viewed and worked on both online and offline.