Adobe Reader is a freeware for free from the Internet to download and is supplied by many software vendors, along with the documentation of their programs on CD-ROMs. Some older operating systems are also backed with the most recent compatible version older readers. The oldest officially supported version is 8.3.0 (for Windows 2000 ), [2] , for example, older versions can be obtained from the internet. Adobe in October 2011 after a version of Adobe Reader for Apple iOS has presented all major operating systems for mobile devices are supported. At the beginning there was the Adobe Acrobat Reader for DOS.
From version 5.1 to version 6, the program in two versions were available, a compact basic version and an extended version that only supports the viewing of documents and full-text search (with included index also of PDF document collections) and the playback of embedded multimedia objects. Since version 7, and three-dimensional graphic objects are displayed. Certain functions are only available in documents associated with the fee-based Adobe Reader Extension Server have been activated. In addition to the functions of display and printing of documents supporting the Adobe Reader and filling out forms. These can be printed out and, when the author of the document has enabled this, and saved or sent as an e-mail to a specified address. The functions annotate and comment do not have to be unlocked separately from Adobe Reader X.
