“The production of PDF files that can be read by users using assistive technologies is not an easy task.” GrackleDocs.com proposes a very simple production process. “Which validates the document, guides the correction and, at the end of the process, provides the option of converting a Google Docs document into a document in PDF / UA format. UA is the abbreviation of Universal Accessibility, preserving this PDF an adequate reading order for example to those who use screen readers with speech synthesizers, preserves the structure of headings, paragraphs, data tables, as well as the alternative textual equivalents of the graphs and diagrams.While the review process the system still draws attention to colors used in letter and background, and still for the letter size to use. ”
Source “http://www.acessibilidade.gov.pt/arquivo/1647”