How to Adjust Screen Size on a Mac?

How to Change the Screen Resolution on a Mac

To change the display resolution on your Mac, click the Apple menu → click System Preferences → click Display → click the Scaled option → select the resolution or display scaling you want to use.

How do I Resize my Mac Window that is too Big?

Move the pointer over the resize corner in the bottom-right corner of the window.
Hold down the left mouse button and drag the mouse. The window grows or shrinks as you drag the mouse.
Release the left mouse button when you're happy with the new size of the window.

Why is my Mac Screen Zoomed In?

Sounds like you have screen zooming enabled. Its an Accessibility feature. Go to System Preferences > Accessibility > Zoom and disable either/both keyboard zoom or scroll wheel zoom. To get rid of the zoom immediately, type command+option+8.

How do I Get my Mac Screen Back to Normal Size?

Choose Apple menu > System Preferences.
Go to Displays.
Here you can choose between Default for display or Scaled. Default for display gives the sharpest text and most detailed images. Scaled allows you to pick a resolution that best fits your needs.

How do you Unzoom a Mac Screen?

Zoom in. To zoom in, press these three keys together: Option, Command, and Equals sign (=).
Zoom out. To zoom out, press these three keys together: Option, Command, and Minus sign (-).
Toggle zoom.