Gallery

With current Gallery2 you can configure the rights that unregistered users
have access to resized images and registered users have access to full
sized images. If you use only small images (fit within the screen) this
works fine.

However if you want to have a large image (larger than screen) as full size
image this trick doesn't work and the registered users will see the
watermark on the images.

It would be a great feature to be able to enable/disable the watermark for
registered/unregistered users, or maybe even a group. This could be done in
the permissions section or in the watermark section.