Which file formats work with mmhmm?

The following file formats work with mmhmm:


  • PowerPoint (.ppt and .pptx)
  • Keynote (.key)
  • PDF (.pdf)
Tip: For Google Slides presentations and for presentations that include non-standard fonts, we recommend downloading a PDF version of your presentation and uploading that to mmhmm. To learn more, read Import slides from Google Slides / Keynote / PowerPoint into mmhmm.


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


Note: We recommend using video files with 1920x1080 pixel resolution and a maximum file size of 64mb.
  • MPEG-4 (.mp4)
  • QuickTime movie (.mov)
  • Windows Media Video (.wmv)
    • .wmv files are supported on mmhmm for Windows only.

Don’t see the answer to your question? If you’re having technical difficulties or want to suggest a topic for this guide, submit a support ticket or email us at help@mmhmm.app.

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