Quick summary
Changing Google Slides to portrait orientation is done through the Print settings panel, not the slide editor. Select Portrait under the Layout section to ensure slides print vertically instead of the default landscape format.
Steps
- Open your presentation and click Print (or press Ctrl + P) to open the print dialog.
- In the left panel under Layout, choose Portrait orientation.
- Your Google Slides are now set to portrait orientation and will print vertically.
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