Pennant was unveiled by Zaragoza yesterday and Bandres beamed: "He is one of the best right wingers in European football and with a proven quality.
"He's only 26, but has played over 160 Premiership matches in England."
Pennant is proud to be the first Englishman to pull on a Zaragoza shirt.
"The affection of the fans convinced me to join," he said. "I want to bring a lot to the team - including goals. I hope to improve that part of my game this season."