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When using audio or video in PowerPoint, the file size of your presentation can get pretty big. To get the size under control, you can compress the media in your presentation. Just click the File tab, then select Compress Media to access compression options.
We recommend making a backup copy of your presentation before doing any compression because once you save and close the file, the change will be permanent.
Watch the video below to learn how to compress media files in PowerPoint.
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