When you’re using projectors and monitors to give your presentation, it might not be well-suited for these kinds of screens. However, Google Slides allows you to change the aspect ratio of your presentations, choosing between 16:9 (widescreen), 16:10, 4:3 (standard) and custom. Depending on where you’re going to give your presentation, you might need an adapted version for widescreen or another one for 4:3 screens. In this tutorial, you’ll learn how to change the aspect ratio step by step. Have in mind that after modifying the original aspect ratio of your presentation, any elements and images will get scrambled and you’ll need to readjust them one by one in the slides or even the master slides. To change the aspect ratio of your slides, click on File → Page setup… Then choose the desired option. Page setup If you need any other size, choose “Custom” and enter the desired width…    read more