Since PPT 2000 you have been able to embed TrueType fonts, although I am not
certain of how all appear on a Mac. Embedding does increase the file size,
make saves alot slower and it needs to be a non-licensed font (when saving
the presentation you will receive a warning if it is a licensed font).
To embed go to TOOLS >> OPTIONS >> SAVE >> check the embed dialogs at the
bottom.
