I'm working on auto making of icons from big images, using GDlib. Icons should be with round angles and space beyond angles should be transparent. My icons look very nice and beautifull, and the only thing I need to add is shadow. For now my main idea is to make a transparent image with this shadow and to impose it over my icon. Are there any other/better solutions? What's the best way to do this ?
I think the best solution would be to manage this using imagick, even more, I have found an example of what I need http://valokuva.org/?paged=3.