Learn how to resize photos easily in Powerpoint by following the steps listed below, and watching our screencast.
Step 1 - In PowerPoint, decide which photo you would like to resize.
Step 2 - Click anywhere inside the image, and then select the corner which you would like to extend.
Step 3 - Hold the click on this corner, and extend the photo to the size you want.
If you want to be precise, drag the photo until you see red grid lines show up, and line up with any other content.