PDFs can be more accessible than was previously possible but there are lots
of gotchas, and it's way too big a topic to cover in this reply. Note that
by default, PDFs are not tagged, so they are only marginally more accessible
than before. Maximum accessibility is obtained by tagging them, but
Steve Green wrote:
[lotsa good stuff snipped]
That's a superb answer, Steve! I have saved it and will memorize it to
quote at people who have nothing better to do than parrot vendor
propaganda! :-D
Cheers
Mark Harris
Technology Research and Consultancy Services Ltd.
New Zealand
I'd add one additional comment about PDFs. PDFs do not deal with actual
letters and characters, rather they deal with sequences of glyphs. PDF
documents may not contain the actual text. Nor may the fonts contain well
formed cmap tables. This will impact on accessibility of the document.