I want to put a picture on a PowerPoint slide and then send it backwards so that parts of it are hidden by the design on the master. I can't figure out how to do it.
Here's an example of a slide from the deck. I want to replace that photo with another. I asked the people who made it how they were able to send the photo backwards so that the part to the left was hidden behind the zig-zag and the main part of the slide. I was told that they had "outside help" building this presentation, and that the photo is *cut along the outline of the zig-zag to be made to fit it.*
I clicked on the photo and dragged it and sure enough, the photo is zig-zagged on its left border to fit exactly with the graphic of the zig-zag on the master.
This... is not how PowerPoint master slides are supposed to work, is it?
How do I fix this? I have access to the master slides, but I don't know a whole lot about PowerPoint (and apparently neither does anyone who works for my company, even the people who are paid to make PowerPoint presentations)