I want to watermark the full size images on my Zenphoto implementation, and have figured out most of the things I need to know, except where to install the custom watermark I'm creating. Help, please.
I believe there used to be a watermark plugin, but it has been abandoned.
It would be helpful if, when the watermark-text option is selected from the dropdown list, a further dropdown list of available watermarks was displayed.

place them in a folder named "watermarks" in your plugins folder.