To change your PowerPoint slideshow orientation from horizontal to portrait, you must access the "Slide Size" feature under the "Design" tab.

You may use PowerPoint to create content for you digital sign. To create high quality digital signage content, you will need to set the slides to a 1920x1080 resolution which is the typical digital ...

PowerPoint gives you the options you need to show your presentation exactly the way you want, including how much of the screen it takes up. To ensure there's no letterboxing (black borders) on your ...