This is: http://www.adobe.com/products/acrobat/readstep.html
A text-only Acrobat Reader download page is available. This page is compliant with the W3C's Web Accessibility Initiative Guidelines and is optimized for screen readers.
Adobe® Acrobat® Reader is free, and freely distributable, software that lets you view and print Adobe Portable Document Format (PDF) files. With Acrobat Reader, you also can fill in and submit PDF forms online, as well as download encrypted content from the Web and unlock it with Web Buy.
Note: You will receive the most recent version of Acrobat Reader that is available for your language and platform.