This page shows both the starting image and desired final result (reduced).

I added a few decorative borders to the original image, then pasted a drop shadow
on the result so that the drop-shadowed image blends well
with the background of the overall web page.

The workflow we create uses a mask, and that requires all the images we process
through the workflow to start out as the same size, because there is no way to create
and then use a mask "on the fly" during a workflow process.