In this tutorial you'll learn how to switch your PowerPoint slides from landscape to portrait orientation. You can either watch our video, or follow the steps below:
Go to the 'Design' tab and click on 'Slide size' and choose 'Custom slide size' in the dropdown.
In the dialog, under 'Slides' switch from 'Landscape' to 'Portrait' and click on 'OK'. Depending on the size of your slidedeck, this may take a few seconds.
Now you can select how the contents of your existing slides will be resized to portrait format. There are two options available:
Depending on the size of your presentation, this may take a few seconds.
Now all your slides are in portrait format! However, if you use graphics as background images in some of your slides, changing the orientation can cause unexpected distortion of the images. You'll need to correct this manually.