Related to this question without an answer, I'm using the latest PowerPoint for Mac (14.2.3) but when I save a PPTX as a PDF the links are gone. Is there some trick to getting them to remain?
Links aren't clickable in Mac Preview or PDF.js inside Firefox, however Chrome apparently creates links where it thinks they should exist because it's built-in reader will show the URL as a link.
Just created a blank PowerPoint and linked to 'http://www.google.com' to test and all the above holds true, only clickable in Chrome's viewer.
Note: Tried this with the same PPTX on Windows Office 2010 and the links save to PDF fine so it doesn't appear to be an issue with my file