Read next: How to use your iPad Pro as a second Mac screen | New Apple 5k monitor rumours How to rotate the screen on a Mac 1. Open System Preferences (you can click the Apple logo at the top left ...

Drag the marker under Orientation counterclockwise, or enter a number between 0 and 90 in the Degrees field. You can rotate text up to 90 degrees clockwise or counterclockwise.