Alan K. answered 01/16/21
B.A. in Graphic Design with eight years of tutoring experience
If you mean cropping to a selection boundary, yes it is possible. In this case, you may use any selection tool to create the particular selection you want, then press command + 7 or Alt + 7 on the keyboard to create a new layer with the selection, or use the layer mask option by clicking on "Add a mask" located at the bottom of the layer palette.