Do either of the following:
Choose Image > Crop to Selection; or
Choose the Crop tool, and then click Current
selection 
in the Snap
crop rectangle to
group box on the Tool Options palette. Adjust the crop area and
click Apply 
.
In Paint Shop Pro, you can make a selection and then crop the image using that selection.
Note: If you crop to a selection that is feathered, the current background color fills in the feathered region of the selection.
To crop using a selection:
Make a selection in the image, see Making Selections in Images.
Note: The selection can be any shape. Paint Shop Pro places a crop area rectangle around irregularly shaped selections.
Do either of the following:
Choose Image > Crop to Selection; or
Choose the Crop tool, and then click Current
selection in the Snap
crop rectangle to
group box on the Tool Options palette. Adjust the crop area and
click Apply .
Cropping Based on Opaque Areas