Adobe Acrobat Reader is a free software for viewing and printing PDF-files (Adobe Portable Document Format). Adobe PDF-files can be viewed on most major operating systems.
With the Microsoft Word 97/2000Viewer Microsoft Word users can share documents with those who do not have Word and users without Word can open and view Word documents.
This viewer allows people who use PowerPoint to share their presentations with people who do not have PowerPoint installed on their computers. It helps them to easily open *.ppt-files.