Well, I guess there could be a generator somewhere on the internet, but chances are it will have a masssive watermark on it, its prolly better if you ask someone around here to make one for you if you want one, or learn how to use photoshop or any other program that would allow you to make signatures( well if it can out put a 100X600 pixel image in png,jpg or gif you can use it, be creative if you want to, my sig is made in sony vegas!).