Step by steps PowerPoint crop to custom shape:
1. Add a shape to your slide
2. if you add an icon to the slide, you need to convert it to shapes
3. If you add an image or png file, you need to use free online tools to convert it to SVG format, then convert it to shapes.
4. Now you can right-click on the shape and select the Fill option at the top of the dropdown.
5. The Fill option will then display its own dropdown where you need to click the Picture menu.