Google will quickly find a number of guides and tutorials to get you started on the right path. One that I like is published by my employer, CA state government, in MS Word format ...
Adobe Acrobat X Professional: PDF Accessibility (Section 508 Tagging) Reference Guide
Thank you, this looks like it has some good information. I'm still having problems with Acrobat reading all text, even if two sections are tagged exactly the same, its not reading them the same. Any thoughts?
Keep in mind that Acrobat / Reader's read out loud is not an assistive technology (AT) application. While is a reasonably nice text to speech application it is not a "screen reader" (NVDA, JAWS, etc.)
Using it as "AT" is kinda like use the hammer's claw to try an pull our a deck screw eh.
In addition to screen readers like NVDA and JAWS, there are several free screen-reader-emulators that you may find helpful. These tools display the document in the way that an AT user would hear it.
- Callas Software's pdfGoHTML is an Acrobat Pro plugin;
- The VIP PDF Reader is intended for people with visual impairment;
- The excellent free PDF accessibility checker PAC2 includes a screen-reader-preview feature;
- PAC2's predecessor, PAC 1.3, has a different style of screen-reader-preview that is especially useful when working with tables.
The first two are available in Mac version. The PACs are PC-only to the best of my knowledge.