a brand name for a computer program that allows you to make changes to a digital image

Do you know how to use Photoshop? 你知道怎么用Photoshop吗？

to use the computer program Photoshop to make changes to a digital image

Her picture on the front cover had been photoshopped to make her look thinner. 她在封面上的照片被修过，让她看起来更瘦一些。