Change Zoom preferences for accessibility on Mac
On your Mac, use the Zoom pane of Accessibility preferences to make the entire screen larger or to enlarge just the area where the pointer is located.
To change these preferences, choose Apple menu 
> System Preferences, click Accessibility, then click Zoom.
Option | Description |
|---|---|
Use keyboard shortcuts to zoom | Use the listed shortcuts to zoom in or out. For example, to zoom in, press Option-Command-Equal Sign. |
Use scroll gesture with modifier keys to zoom | Press and hold the selected modifier key while scrolling with your trackpad or the scroll wheel on your mouse. For example, with the default trackpad settings, press and hold the Control key and drag two fingers up (to zoom in) or down (to zoom out). |
Zoom Style | Zoom the entire screen (Full screen), a custom area of the screen (Split screen), or just the area where the pointer is located (Picture-in-picture). When you use full-screen zoom, you can zoom the screen of an available second display (sometimes called Zoom Display). Click Choose Display, then choose a display. |
Advanced | Specify options for the selected zoom style. |
Enable Hover Text | Display a high-resolution zoom of text, text fields, menu items, buttons, and more in a dedicated window. Click Options to set Hover Text options.
|
Enable Touch Bar zoom | If your Mac has a Touch Bar, display a larger version of it on the screen. See Zoom in on the Touch Bar. |
To quickly enable or disable Zoom using the Accessibility Options shortcut panel, press Option-Command-F5 (or if your Mac has Touch ID, quickly press Touch ID three times).
To specify which options are available in the shortcut panel, choose Apple menu > System Preferences, click Accessibility, then click Shortcut.