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Updates to the Home experience elevate entertainment and bring more convenience. Learn more >
We have switched to Apple TV at church for projecting the Mac’s screen large enough for the congregation. Our previous wireless connection allowed a roughly 6 foot wide image. How do I enlarge the image coming from the iMac?
Apple TV sends out a 16:9 image, always. Keep that in mind, and configure the other devices to match, as well as your documents!
The projection size is fully controlled on the projector, not on Apple TV, nor Mac. You can set the Mac screen mirroring to match the Apple TV screen for aspect ratio, rather than the aspect ratio of the built-in screen (System Settings﹥Displays﹥Optimize for﹥Apple TV); that may help in avoiding projecting black bars or pillars. [Not needed if set to separate display (=2nd screen), which Keynote or PowerPoint will happily use for the full screen presentation.]
Sharing screen with projector to size
