From what I can tell, it retains the size of the image when you 'change picture' if that's all you have changed, but if you also have a crop applied, it will scale the image to the cropped shape. It's not right, but I can't see a way around it. Short of making these adjustments outside of Powerpoint, if you have a solid background colour you could always play with using a solid coloured box, without outline (eg. White box, white background) and create your own clipping mask.
With Apple TV, you can mirror the entire display of your Mac to your TV or use your TV as a separate display. To turn on AirPlay, follow these steps: Make sure that your TV is powered on. Choose in the menu bar*, then choose your Apple TV. If an AirPlay passcode appears on your TV screen, enter the passcode on your Mac.
Stream to one device at a time with supported games. Xbocxx app for mac?. Broadband internet required for some features; ISP fees apply.
Automatically back up photos from your Mac or PC, connected cameras and SD cards. Windows 7 + Mac. MacOS 10.9 +. Get the Google Photos app to back up and view photos on your Android and iOS devices. Google photo app, for android to mac.
This then doesn't reset the image size below when you change it as they are independent of each other. – Mar 17 '16 at 23:33 •.