Adobe ACROBAT 3D Manual page 28

If you want to create an accessible document for vision-
and motor-impaired users
Acrobat provides a set of features that let you create accessible documents from new or
existing PDF documents.
Check your Adobe PDF documents for accessibility before distributing them to users.
(See Checking the accessibility of Adobe PDF
Optimize PDF documents for reflow by tagging them. (See
documents for
Quickly check the reading order of tagged PDF documents by using the TouchUp Reading
Order tool. (See
Correct many types of tagging problems, and add alternate text to images. (See
tags and Checking and adding alternate text to
Employ a greater level of editing control over tags or work with PDF documents that
require detailed tagging of tables. (See
Resolve difficult reflow problems. (See
accessibility.)
Checking a document's reading
documents.)
order.)
figures.)
Using the Tags tab.)
Using the Content
Tagging Adobe PDF
tab.)
Correcting