Beckham, 37, has won league titles in three different countries: Manchester United in England, Real Madrid in Spain and LA Galaxy in the U.S. He'll continue to wear the No. 32 jersey at PSG.
"I'm very lucky. I'm 37 years old and I got a lot of offers, more now than I've probably had in my career. I'm very honoured by that," said Beckham said at press conference on Thursday.
"I can run around. I've not lost any of my pace because, to be honest, I've not had a lot of pace during my career. For me, Carlo [Ancelotti] is one of the best managers I have played for. It's exciting on a number of levels."
Paris Saint-Germaine, owned by Qatari Nasser Al-Khelaifi, spent nearly $300 million since they were taken over by the Qatar Investment Authority. The club currently tops Ligue 1 with 45 points and will face Valencia in the UEFA Champions League Round of 16 in February.
Carlo Ancelotti and Leonardo, who Beckham worked with at AC Milan, are now manager and sporting director, respectively, at PSG.
Beckham's family will live in London, where his young sons are training with Chelsea youth.
Beckham keeps MLS ties
Beckham is expected to remain involved in MLS and exercise his contract option of purchasing an MLS franchise.
“Obviously now I’m finishing playing [in MLS] over the weekend, the ownership part comes into play and it’s something that I’m excited about," said Beckham just before MLS Cup. "It’s something that again I think proves my commitment to the league and to whatever club I become part-owner or owner of. I’m excited about that.
I’ll always be committed to the Galaxy in some way because I’ve been here six years and it’s like Manchester United, like Real Madrid it becomes a home for me.”