You may also enter a size for your slide images in the Width and Height boxes. Select either Save Every Slide or Save Current Slide Only. On the File Format menu, select the picture format that you want, such as JPEG or PNG. Note: When your slides are converted to picture files, any transitions, animations, movies, or audio are removed from the presentation. When you've made all your selections, choose Export.
You can also choose to set the amount of time the video will spend on each slide if you don't have a set timing. If you have recorded timings and want to use them in the video you create from your presentation, make sure the box next to Use Recorded Timings and Narrations is checked. The higher the video quality, the larger the file size. Select the video quality you want: Presentation Quality, Internet Quality, or Low Quality. On the File Format menu, select the video format that you want (MP4 or MOV). (Beginning with PowerPoint for Microsoft 365 for Mac version 16.19, audio narration is included in the video when you export your presentation.)
If you have a Microsoft 365 subscription, make sure you have the latest version of Office. Note: Exporting your presentation as a video feature is only available to users using PowerPoint for Microsoft 365 for Mac, PowerPoint 2019 for Mac, or newer versions of PowerPoint for Mac.