Quick summary
To increase the slide size in PowerPoint, open the Design tab, navigate to Slide Size, and enter custom Width and Height values in Page Setup. After clicking OK and choosing Scale, PowerPoint applies your new dimensions to the entire presentation.
Steps
- Inside the slide canvas of your PowerPoint presentation, head to the top menu bar and click the Design tab.
- Click Slide Size in the ribbon to open sizing options.
- Click Page Setup to proceed to the custom size dialog.
- Under the Size section, increase the default Width and Height values using the spin buttons or by typing a specific measurement into the fields.
- Click OK to apply the new slide dimensions.
- Choose Scale to automatically reformat existing content to fit the new slide size.
- Your PowerPoint slide size is now increased based on your configuration.