PowerPoint: Resize a Presentation for Different Screens

PowerPoint: Resize a Presentation for Different Screens

When you create a PowerPoint presentation, the computer/screen with which you create it may be different from the screen that you are presenting on. The aspect ratio may be different between computers.

What is Aspect Ratio?

Aspect ratio is the size relationship between the height and width of the slides. Some ratios look more square while some look rectangular. The three aspect ratios used on campus are 4:3, 16:9, and 16:10. Click the Printable Instructions below for a table of the various aspect ratios used on campus.


If there are issues with the aspect ratio, it may move the elements of your slide. You will want to arrive at the room you are presenting in at least 10 minutes early, if not earlier, to test your PowerPoint presentation. 

Creating Your Presentation in the Proper Aspect Ratio

Follow these steps to create your presentation in the proper aspect ratio for the room you will be presenting in.

  1. Check the [Printable Instructions] PDF below for the aspect ratio of the room you will be presenting in: 4:3, 16:9, or 16:10.
  2. In PowerPoint, click on the "Design" tab.
  3. In the "Customize" group, click the [Slide Size] button. 
  4. From the dropdown menu, select the proper aspect ratio for the room you will be presenting in, or click "Custom Slide Size" to manually enter the aspect ratio.


When you preview your presentation on your computer, the slide may not take up the whole screen.

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