Required to view material encoded as Portable Document
Format (PDF). PDF is a universal file format that preserves the
look and layout of a printed document. These files are accessible
through a free viewer published by Adobe. This file type is used if you
want to print a copy of the document. PDF files cannot generally be
edited electronically.
Free, for Windows, Macintosh, and several other operating systems.
Download Adobe Acrobat Reader:
http://www.adobe.com/products/acrobat/readstep2.html ; Adobe
Web site homepage: http://www.adobe.com
For PDF Accessibility Options: Go to
http://access.adobe.com/.