If you embed a watermark in the images themselves then you will discourage their use. If the watermark identifies your site then if they do take them they will be advertising your site.
The only more effective way is to not upload the images to the web in the first place.
If you embed a watermark in the images themselves then you will discourage their use. If the watermark identifies your site then if they do take them they will be advertising your site.
The only more effective way is to not upload the images to the web in the first place.
Note that in order to view your web page your visitors already have a copy of your images downloaded to their computer because that is the copy the web browser displays.
