Use Widescreen (16:9) or Standard (4:3) or choose a custom size for your slides.
How to Change the Slide Size in PowerPoint Presentations
Add closed captions or subtitles to media in PowerPoint - Microsoft Support
Change the size of your slides - Microsoft Support
Change the size of your slides - Microsoft Support
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Discover How To Change Slide Size In PowerPoint
How to increase PP size : r/technicallythetruth
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How to Change the Slide Size in PowerPoint Presentations
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