The veteran midfielder joined the Paris club on a five-month deal on deadline day.
Thw Swedish superstar has described the 37-year-old as a "real winner" and insisted that he is exactly what Carlo Ancelotti's side needs.
"I believe that signing him was a good thing because apart from his experience, he has a lot of other qualities," Ibrahimovic told RMC.
"He adds something in the mental aspect of the game as he's very strong mentally.
"He is a real winner and that's exactly what we need. He will help us a lot."
Beckham announced that his salary at PSG will be donated to charity during his time at the club.