There are multiple ways to zoom in or out on your Mac, depending on the application you are using. Here are several methods to zoom on a Mac:
Using the Trackpad
If you have a trackpad on your Mac, you can use it to zoom in or out of an image or document. To do this, hold down the Ctrl key and use two fingers to pinch or spread apart on the trackpad. This will cause the image or document to zoom in or out.
Using the Keyboard
If you prefer using the keyboard, you can also zoom in or out of an image or document by pressing Command and either + or -. Pressing Command and + will cause the image or document to zoom in, while pressing Command and - will cause it to zoom out.
Using Universal Access
If you have difficulty seeing the screen on your Mac, you can use the Universal Access feature to zoom in or out of an image or document. To do this, go to System Preferences, select Universal Access, and then select Zoom. From there, you can adjust the zoom level to your liking.
Using Third-Party Applications
There are also third-party applications available that allow you to zoom in or out of an image or document. One popular option is MagicPrefs, which allows you to customize the zoom settings for your Mac.
Conclusion
Zooming in or out on a Mac can be done using various methods, including using the trackpad, keyboard, Universal Access feature, and third-party applications. By following these tips, you should be able to easily zoom in or out of any image or document on your Mac.