You can change the size of a slide in your PowerPoint presentation through the "Design" menu. Microsoft PowerPoint allows you to change slide sizes on the Windows PC, Apple MacOS, and web-based apps.

If you're like me, you've been building presentations for years. You probably started out making standard (4:3) size decks. These days, there is increasing demand for widescreen (16:9) decks.

To change your PowerPoint slideshow orientation, you must access the "Slide Size" feature under the "Design" tab. You can then adjust your PowerPoint slideshow from the horizontal landscape to ...