Wasn't Iconian able to convert images to .info with a variety of options?
There was one program that let you drag and drop an image file and automatically create an icon of said image done to your parameters.
I can't remember it doing jpgs though, mind you way back when I used it years ago I mainly had iffs.
-edit--
amije got there before me :-)
and this post doesn't sound at all like I'd normally post. Sounds like I'm trying to be a lawyer!