I'm trying to set up a template for Powerpoint for a report I'm generating. I'm using a content placeholder for certain images since it is supposed to show the image at full size whereas a picture placeholder might crop it at the top and bottom if the aspect ratio isn't the same.

But for some reason it doesn't use the full size of the content placeholder as I've set it and instead shrinks the image down both vertically and horizontally. I've looked through the settings and can't see anything that would suggest why it would do this.

Any ideas or help please?