In OrdaSoft responsive image gallery for joomla (ordasoft.com/os-image-gallery.html
you may add watermark to
"Top right","Top left","Center","Bottom right","Bottom left"
1. Bottom center
2. Top center
I am sorry, we haven't this features.
We may propose to you order this as "customization service".
Please write to OrdaSoft contact form (ordasoft.com/contact-us-form
) with full details description.
How all must look and work. And we will give to you quota