Adobe Acrobat 7 Professional - Manual (Page 413)

Using a screen reader
Adobe Acrobat supports assistive technologies that enable visually impaired users to
interact with computer applications, such as screen readers and screen magnifiers. When
assistive technologies are in use, Acrobat may add temporary tags to open PDF documents
to improve their readability. Use the Accessibility Setup Assistant to improve how
Acrobat interacts with the type of assistive technology you use. (See
Setting accessibility
preferences .) You may also change your reading settings for the current document when
using a screen reader by choosing Advanced > Accessibility > Change Reading Options.
(See
Setting Reading preferences .)
Contact your vendor for more information about using a screen reader or screen magnifier
with Acrobat.