I apologise if I've just missed it somewhere, but can
acrobat.com users collaborate on (mark up) a shared PDF like they
can with a Buzzword doc? It seems to me like this would/should be a
fundamental feature of _acrobat.com_.
Is this possible? How do I do it? I have a client who send
artwork through a committee to comment, and I'd like to be able to
have them all mark up the same PDF rather than having them send
back multiple copies, as they keep doing, despite my best efforts.
If the requirement that you have is for multiple reviewers to
be able to comment on a shared PDF and then assimilating the
comments, then Adobe does offer a solution. You may try using
Acrobat Shared Reviews hosted on Acrobat.com.