How do I reduce the Keynote filesize

You probably love keynote. Or well I do compared to powerpoint anyways. Not that either of them are super great. Our company Keynote prensentation often needed to be modified prior to different meetings. Therefore we made a MOTHER PRESENTATION that contained all slides. The presentation was a wopping 2 GB and with all the duplicate presentations we suddenly had 5-10 GB used on this – eventually slowly killing all the laptops. With a cloud sharing work flow we could never get it down in time for the meetings. This is when we decided we need to reduce the Keynote filesize!


So do you reduce the Keynote filesize ?

There are some simple steps to follow when making you presentation – but also a lot of things you can do to optimise it if you are in the same situation as us.

Pre optimise:

  • Link to movies – don’t embed them. Yes this is possible. Go to preferences -> general and uncheck “copy audio and movies to document”. Restart Keynote and when you now import a movie (shift+command+v) it is not embedded into the Keynote file. This way multiple presentations can share the same movie.
  • Reduce you movie filesize by using the in app function. Or use Adobe Media encoder – selecting “same setting as document, medium bitrate.”
  • Always make sure you images are no larger than 1920px the maximum view size. And always save them as .jpg and not .png (lossless), before importing them into keynote.
  • Always import images to have control. Dont paste them from a pdf or drag the from the web.

Post optimise:

  • Reduce filesize. Go to the keynote menu file->advanced->Reduce file size.
  • Inspect you document. Go to File->advances->select  filetype-> package. Now you can right click the presentation file and say “open package” – then open the data folder and sort by size. You can now see which files in you document that is causing trouble.
  • Re-link movies. Delete movies from the presentation and re-link them as described above.
  • Edit big images. You can copy a image out of the data folder. Reduce its filesize and save it anywhere. Then from keynote you select the image and chose replace and locate your new file.

That is how you reduce the Keynote filesize!

Fullscreen video from a slide with a small video image ?

I thought I would share how to make your video play fullscreen if they a placed on a slide with other elements. In the context menu “build in” should be start movie on click. Then select actions and add “move”. Move to video to the center. Then Select “add action” and “scale” thus scaling the video to fit the frame. Complete it by pressing “build order in the bottom and choose “start after build 1” for the move and “with build 2” for the scale. Done!


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