How to Change Page Size in PowerPoint

PowerPoint is a fantastic program that you can use for many other purposes aside from slideshows.  I now often use it to write lesson plans or other text that I want to print onto A4 paper. I have also used it to print A3 posters, make website banners, and square cover pages for my TeachersPayTeachers site. The video below will teach you how to do this simple but handy trick.