More information to be more specific about the problem:
The specific issue with PDFMaker is that a partial toolbar shows in
PowerPoint, but it doesn't work. I'm using Acrobat 7.0 and the toolbar
worked fine until apparently I made seemingly unrelated changes in my system
(perhaps an automatic update from Microsoft), and still works in MS Word. I
can make a PDF from PowerPoint using a workaround (print to "Adobe PDF"
printer) but it is inconvenient to do it that way.
PowerPoint (in Help, About) shows "pdfmofficeaddin.dll" as disabled, and
when I reenable it, PowerPoint crashes.
I've removed and reinstalled Adobe Acrobat and run repair operations for MS
Office. Have not yet removed and reinstalled Office because of the havoc
this operation creates in Outlook.