I found this great tool that lets users rotate and crop pictures. I was thinking this would make a nice addition to 4images thumbnail generator. This way the uploader can select what peace of the image should be used as a thumbnail.
You can see a demo here:
http://roel.meurders.nl/web_php/12cropimage-php-image-crop/#demoThe only problem is that I don't know how to integrate it with the 4images upload function.
I am willing to pay for this integration. And still let other 4images users use this script free of charge