To save a PowerPoint presentation as a 9:16 (portrait) MP4 video, first, change the slide size to a portrait orientation under the Design tab > Slide Size>> > Custom Slide Size, selecting Portrait. Then, go to File > Export > Create a Video, select your desired quality and timing settings, click Create Video, and save it as an MP4 file.
Step 1: Set Your Slide Size to Portrait
- Open your PowerPoint presentation.
- Go to the Design tab on the top menu.
- Click on Slide Size.
- Select Custom Slide Size from the dropdown menu.
- In the dialog box that appears, change the Orientation dropdown for both “Slides” and “Notes, Handouts & Outline” to Portrait.
- Click OK. You may be asked to choose between “Maximize” or “Ensure Fit” for existing content; choose the option that best fits your presentation’s needs.
Step 2: Export to MP4 Video
- With your presentation open in portrait mode, click on the File tab.
- Select Export.
- Choose Create a Video.
- Select the desired video quality.
- Decide if you want to use recorded timings and narrations, and set the default time per slide if you’re not using recorded timings.
- Click Create Video.
- Choose a location to save your file, enter a file name, and select MPEG-4 Video as the Save as type.
- Click Save to begin the video conversion process. A progress bar will appear, indicating the status of the conversion.
