Let us say you insert a shape into your PowerPoint slide. What do you do next? You probably want to make some changes to it, like resizing or rotating it. This is no different than what we do in our everyday lives, like rearranging our work desks or even changing the position of our favorite chair. Similarly, all objects on your slide need to be arranged in a way that feels appropriate, and rotation is one way of making this change happen. In PowerPoint 365 for Mac, rotation can be applied in three ways.