Its far to easy to steal images from the net , the best way to protect yourself is to use a watermark ( similar to the image below ) or to disable right clicking from your website(s). If you disable right clicking ( to prevent the image from being copied/saved ) your images can still be stolen if the person takes a screen shot of the page and then cuts out the specific image. So , the best prevention would be to use both , water marked images and disabled right clicks.

If anyone would like a watermark saved , be it just text or a logo please feel free to let me know!