Most presentations contain pictures. A picture in PowerPoint can be used in many ways — as a picture you insert, as a picture you place within a shape, or even as something that covers the entire slide as a background. In this tutorial, we will look at the last option — that lets you use a picture as a slide background. Before you begin, you need to put in plenty of thought into whether the picture you are using will work as a slide background or not? So how do you determine if a picture will work as a background or not?