Logotype of the site in all the images of the gallery automatically

[newboxters]

Hello. 
 
He would like to know as I can do to be inserted the logotype of my site and a small text automatically in the part of bass of all the images of the gallery.
 
Is there as I do that? What does of the code leave I should alter, or what resource should activate or some plugin there am been for me to add this resource? 
 
Thank you.

[Davide Renda]

Try having a look in the Mods section of this board, searching for "watermark". There are plenty of solutions to do what you need