PDF stands for "Portable Document Format." PDF documents are designed to appear on screen, and to print, almost exactly as they looked when they were created. The format is useful for creating documents with specific pagination, indices, precise layout, etc. The AAR uses PDF files when these attributes are necessary.
Viewing PDF documents requires installation of the Adobe Acrobat Reader, a free "plug in" which will work with both Netscape Navigator and Internet Explorer to make PDF documents readable when browsed. Click on the icon below (or go to http://www.adobe.com/products/acrobat/readstep.html) to get the free Acrobat Reader if you do not already have it installed.
Visually-impaired persons who wish to view PDF files should visit http://access.adobe.com, where they will find information on accessibility functions in the Acrobat Reader.