Install Embedded Fonts Some of the embedded fonts in your presentation cannot be installed. When that presentation was opened by newer versions of PowerPoint Mac which should support embedded fonts according to Microsoft, the user got the following error popped up: I purchased a professional font and embedded it into a PowerPoint 2019 presentation on Windows. Opening these fonts with this utility and re-saving them and re-embedding them fixes the problem. TL DR - Some fonts have a header format which breaks PowerPoint Mac. I just wasted a couple of days troubleshooting a problem with embedded fonts on PowerPoint Mac so I figured I'd share the solution with the rest of you.
