Acrobat XI PDF Accessibility Repair Workflow
Overview
Procedures and best practices for making existing PDF documents accessible.
Table of Contents
Acrobat tags:
<TOC>
<TOCI>
<Reference>
<Link>
Tag: Link - OBJR
{TOC item label}
{TOC item leader}
{TOC item page number}
</Link>
</Reference>
</TOCI>
</TOC>
Good reference: Creating Accessible PDFs with Adobe Acrobat Professional (US Dept of Veteran Affairs)