"Acrobat could not open "XXXX" becasue it is either not a supported file type or has been damaged"
I checked for corruption in the backend and the files themselves are fine. Something is happening in the translation. When the file is being displayed and in some cases, downloaded.
Now that I have the site reconfigured. I have the last item on the list. The view PDF button is corrupting the PDF file so it doesn't display. There is no error message. I found out that if you have site compression on, It will corrupt the download file as well.
I would be happy to send you in a private message the login information.
Update...apparently...the download button is working on my systems but not on my client's. So, to them the system isn't working. This is Acrobat X by the way.