Tagging all product images?

I know this is a longshot, but does anyone know if there is a way to tag all product pictures? Rather than having to type the website name on each picture before adding it to a product. As an example, I've seen that all ioffer listings pictures do that. It will put the name of the sellers store on the images, so someone can't simply use someone elses picture on their own listing. Again I know this is a longshot and not something that can be done through admin, but thought I'd take a chance.

Thanks!

xandros2000:

I know this is a longshot, but does anyone know if there is a way to tag all product pictures? Rather than having to type the website name on each picture before adding it to a product. As an example, I've seen that all ioffer listings pictures do that. It will put the name of the sellers store on the images, so someone can't simply use someone elses picture on their own listing. Again I know this is a longshot and not something that can be done through admin, but thought I'd take a chance.

Thanks!If you want to "watermark" the image....

Image Handler 4 does this