I have not seen anything published on that, and Adobe typically does not provide a breakdown on the installed base by version anyway. I work with a lot of companies that heavily use Acrobat and many are not using version 9 yet. Takes a lot longer than you would imagine to do corporate software rollouts. I also regularly hear from people who are still on versions 6 and 7, and a few version 5 holdouts. My guess is that it is still quite a mixed bag- but that's only my opinion from my own limited observation.
I have not seen anything published on that, and Adobe typically does not provide a breakdown on the installed base by version anyway. I work with a lot of companies that heavily use Acrobat and many are not using version 9 yet. Takes a lot longer than you would imagine to do corporate software rollouts. I also regularly hear from people who are still on versions 6 and 7, and a few version 5 holdouts. My guess is that it is still quite a mixed bag- but that's only my opinion from my own limited observation.
Hope that helps,
Dimitri
www.pdfscripting.com
www.windjack.com
Dimitri Munkirs
WindJack Solutions
pdfscripting.com