How to change screen resolution on Mac: 15 steps

To change the screen resolution on a Mac, open the Apple menu → click System Preferences → click Displays → choose a Resolution option → choose the resolution or scale you want.

Steps

Part 1 of 2: Change your screen resolution

Step 1. Click on the Apple menu in the upper left corner

Step 2. Click on System Preferences

Step 3. Click Monitors

If this option is not available, click the Show All button at the top of the System Preferences window.

Step 4. Click on the Scaled radio button

Step 5. Double click on the resolution you want to use

Selecting the Larger Text option is the same as selecting a lower resolution. Selecting More Space is the same as selecting a higher resolution.

Part 2 of 2: Open the app in low-res mode

Step 1. Exit the application if it is already open

Do this by clicking on the application name in the menu bar and choosing "Finish".

You may need to turn on low-res mode for apps that don't display properly on a Retina display

Step 2. Click on the desktop to make Finder the active program

Step 3. Open the Go menu

Step 4. Click Programs

Step 5. Click on an application to highlight it

Step 6. Open the File menu

Step 7. Click Show Properties

Step 8. Click the Open in Low Resolution button

Step 9. Close the Properties window

Step 10. Double click on the application icon to open it

The app will open in low resolution mode.