Missing Fonts
MacBook Pro with Retina display, OS X Yosemite (10.10)
MacBook Pro with Retina display, OS X Yosemite (10.10)
Everyone on the planet will get this message regularly, no one knows why and no one has found a way of stopping this.
Clock the option box (don't warn me ....) to prevent that individual presentation from showing the warning again.
Most of the fonts on the iPad are also on the Mac, therefore choose a font that is on both.
Missing Fonts