Option-Command-Plus Sign (+): The equal sign version is the way to zoom in on your Mac. Obviously you want it on, but it’s a handy way to check if you’re unsure. Option-Command-8: This turns the zoom function on or off. With a little bit of practice, you can snap zooms and un-zooms instantly as you work on your Mac. If zoom is already enabled on your computer and you’re ready to go, these are the quick keyboard shortcuts to learn (if keyboard shortcuts and zoom aren’t turned on, move down to the zoom panel section for more information). Mac machines have this ability, and we’ll show you how to zoom in on a Mac, customize it, and control it! Keyboard zoom shortcuts While most browsers offer zoom functions, it’s often easier to use the native zoom function onyour operating system that works with everything, no matter what you are doing.