Masterful Photoshop IV

1. Select dimensions

Select the desired dimensions from the drop-down list (excluding the edge).

2. Crop the image

Depending on your chosen measurements, the image may need to be cropped. Move the crop box to the part you want to keep. The part of the image that is outside the crop box will be cut off.

3. Edge

The edge is 20 mm (the thickness of the board).