Answered
I am using PPT 2007 and Acrobat 8.1.2. The PPT I want to print is in the Notes format. It is very slow no matter what way I do it -- using File > Print > Adobe PDF, using Create PDF from the Acrobat menu, or by opening Acrobta Pro and creating it that way.
A 28 page file can take up to 4 minutes for the PDF to be created.