Add mouse hover watermark ability, Logo/Image Watermarks, also a TM logo would be nice, Along with invisible watermarks

I know this is several ideas but I would like to watermark every photo I take and not have text on them when people view them but make it so if they print or save the photo it will have a large watermark. Allong with having mouse hover watermarks so when someone mouses over they know it is watermarked before someone tries to save it.