Why is Mac zoomed in?
Go into system preferences-> accessability-> zoom. Activate “Use scroll gesture with modifier keys to zoom” Choose the modifier key you'd like to use. Now press that modifier key and do the scroll gesture on your mouse or trackpad. There you go.
Why is my iPhone zoomed in?
Open Settings, and tap on Accessibility > Zoom. Toggle the switch to turn it off. Also, you can use iTunes to disable Zoom on your iPhone when you face iPhone screen zoomed in stuck.
How do I zoom in on my iPhone?
Adjust the magnification: Double-tap the screen with three fingers (without lifting your fingers after the second tap), then drag up or down. Or triple-tap with three fingers, then drag the Zoom Level slider.