Our Website shows photos from users that I need to protect from copyright infringements. I have found php code for that but was not able to implement it. Therefore, I am looking for someone who knows how to put a watermark over the pictures. The pictures must not be changed, e.g. the solution cannot be a picture merging with the watermark. The photo has to remain unchanged, the watermark must just be applied on 2 pages one of them is http://www.crowdfoto.net/briefinglist.php where you can open the thumbs in another page - that should be watermark protected.