Ensure the projector is level and perpendicular to the screen, then use the built-in "Keystone" settings to square the image.

When you see below situation, please follow below instructions to adjust:

1. Physical Alignment: Place the projector on a flat surface. Ensure the lens is at a 90-degree angle relative to the center of the screen.

2. Enable Auto Keystone: Navigate to [Menu] > [Setting] > [Keystone] and turn on [Auto Keystone].

3. Manual Adjustment: If the image is still distorted, disable Auto Keystone and use the [Keystone] buttons on the remote or menu to manually adjust the vertical/horizontal alignment.

4. Adjust Tilting: Use the adjustable feet at the bottom of the projector to change the projection angle if necessary.

5. 
   

Note: * Heavy digital keystone correction may slightly reduce image clarity. For the best quality, always try to align the projector physically first.