IMG and PDF Watermark generator
J-Watermarks is an easy to use system to generate custom watermarks for images and PDF too. Users can customize the marks colors, transparency and much more
FNServer is image collaboration software for web servers written for PHP4/5 implementing the FotoNotes(TM) image annotation specification. Modular and object-oriented, FNServer runs stand-alone or as a part of other CMS's. Offers blog and wiki features.