Which file formats work with mmhmm?

The following file formats work with mmhmm:


  • PowerPoint (.ppt)
  • Keynote (.key)
  • PDF (.pdf)

TIP: For Google Slides, and for non-standard fonts, we recommend downloading a PDF version of your presentation and uploading that to mmhmm. To learn more, read How do I use mmhmm with presentation slides from Google Slides/Keynote/PowerPoint? 


  • JPEG (.jpeg)
  • PNG, including transparencies (.png) 
  • HEIC (.heic)
  • GIF (.gif)
  • PDF (.pdf)


  • MPEG-4 (.mp4)
  • QuickTime movie (.mov)





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