Rudd, who has made 10 league appearances for Norwich, came through the club's youth academy but has decided to drop down two divisions in an attempt to play regular first-team football.
"I am really happy I have completed my loan move to Preston North End; my target is to play first team games on a regular basis," Rudd told Preston's official website.
"It is a fantastic opportunity to join a big football club and I can't wait to start training and working hard.
"Norwich City have recruited another goalkeeper in this window so it has given me the opportunity to go out and play and experience regular first team football."
Rudd has been capped up to England Under-20 level.