 You've been given a poster assignment, or you're going to present a poster at a conference. Let's pretend that poster has to be 36 by 48 inches. But how do you do that? This video will show you how to correctly size a poster in PowerPoint. When you open PowerPoint to create your poster, you'll be given a blank slide. It's best to size your poster before you have any content in it. To change the size of the slide on a Mac or PC running Office 2016, go to the tab that says Design. All the way to the right, you'll see an icon for Slide Size. There are two automatic options, but in a Mac, you'll want to click on Page Setup. For a PC, click on Custom Slide Size. You'll see the standard measurement in inches, so simply change the numbers to what you're required to have. You'll notice that the Slide Size 4 will change to Custom rather than Widescreen. Now you're ready to begin creating your poster. Poster size requirements can vary, so be sure to check the requirements before you begin creating your poster.