2012
NVDA 2012 and accessible PDF tables
It's no exaggeration to say that the recently released NVDA upgrade is a huge step forward for PDF accessibility. With respect to tables, NVDA now matches JAWS in almost every way that matters, and in some respects it is significantly better. NVDA is now a realistic alternative to JAWS.
A New Standard for PDF Accessibility: PDF/UA « Adobe Accessibility
It’s important to note that PDF/UA is neither a spec to measure PDF content, like the Web Content Accessibility Guidelines (WCAG), nor an everyday authoring guide. It focuses on giving developers of PDF authoring tools and viewers, as well as vendors of assistive technologies that support PDF, critical information on how to build and present PDF content more accessibly. The goal is to make accessible PDFs easy to author and use, however they are produced.
PDF Accessibility Testing with JAWS, NVDA and Window-Eyes | Accessibility Chatter
So I decided to analyze the three leading screen readers for accessing and testing PDF accessibility. Different elements, such as document title, headings, images, bookmarks, tables, forms, lists, and links were tested with each of the screen reader to understand what were their interpretation and how well did they read a tagged PDF file.
2011
6 free online books about web accessibility | Jitendra
This post highlights 6 free and good books covering Web Accessibility, accessible content, accessible design and accessible typography . All are online HTML version. Some books has free PDF versions also.