PDF documents more accessible with Adobe's Read Out Loud tool
Read Out Loud is a text-to-speech tool in Adobe® Acrobat® that converts text to spoken words. You can choose to have one page read, or the whole document, and you can choose the reading order. While a PDF is being read out loud, you can always pause or stop the reading.
Understanding how the Read Out Loud tool works
You can use the Read Out Loud tool to read aloud as many pages of an Adobe PDF document as you want. Read Out Loud reads the text in pop-up comments and alternate text descriptions for images and fillable fields. In tagged or structured PDF documents, it reads content in the order of appearance within the logical structure. In untagged or unstructured documents, it relies on Adobe Reader to analyze the document for reading order based on the option that you select for Reading Order in the Preferences dialog box.
This functionality is useful if you do not have a screen reader, but it is not meant to replace screen reader technology. A screen reader enables audio output for navigating a computer's user interface, which the Read Out Loud tool cannot do. In Windows, Read Out Loud can work with the Narrator accessibility tool.
For a tutorial on the Read Aloud tool go to: http://www.adobe.com/products/acrobat/tutorials/acr6araccessibility.html
For information on how to use the Read Aloud tool and other accessibility features of Adobe Reader go to: http://www.adobe.com/enterprise/accessibility/reader/sec3_b.html#outloudtool