It is the actual, hand-signed signature of Szerdy. It is not a pre-printed image on the print. No third party is involved. J. Brian O’Bryant.
12x18" Batman Art Print ~ Nathan Szerdy SIGNED Orlando Toy And Comic Con #73/100
12x18" Comic Art Print ~ Nathan Szerdy SIGNED Suckerpunch
12x18" Avengers Art Print ~ Nathan Szerdy SIGNED / Hulk Thor Iron Man Hawkeye
12x18 Inch Aquaman Art Print Nathan Szerdy SIGNED DC Comics ~ Mera
12x18 Inch Nathan Szerdy SIGNED Art Print Catwoman Black Cat Cheetah Tigra
