The Sweden striker was unveiled to the press and more than 50,000 fans at the Nou Camp after putting pen to paper on a five-year deal with Pep Guardiola's side.

And he immediately set the goal of securing Champions League glory.

"Why haven't I won the Champions League already? I don't know, I have been playing with good players," he said.

"But now I will be playing with the best - (Lionel) Messi, (Thierry) Henry, Xavi, (Andres) Iniesta, (Gerard) Pique, (Carles) Puyol.

"They are great players and with that team I am sure we can win it again."

Ibrahimovic completed his move to the Catalan giants on Monday in a deal which sees Eto'o travel the other way.

The Cameroon striker scored 130 goals in Barca colours and helped the side to a string of titles, including three leagues, two Champions Leagues and a Copa del Rey success, in his five seasons at the club.

But Ibrahimovic, who signed a five year deal with the treble winners, says he wants to do even better.

"Eto'o is part of the history book of this club and he will always be a hero here," he said.

"I have not come to replace Eto'o - I am somebody different, somebody new, but I will try to achieve as much as Eto'o did, or even more."

And the former Ajax, Juventus and Inter striker pledged to score more than 25 goals in his first season at the Nou Camp.

"I try to improve every year - last year I scored 25 goals and I was the top-scorer in Italy, so I think I will score even more than that this year; that's my aim," he said.

Ibrahimovic says playing alongside Barca's array of stars is a dream come true.

"They have so many great players; Messi, Xavi, Iniesta, Henry, Toure. I know the team off by heart and I can't wait to play with them - I think playing with them will make me a better player.

"I'm living a dream."

And Ibrahimovic claims the only way he would have left Inter Milan was to join Barcelona.

"It's a very big thing for me," he said.

"There comes a time when you want to develop more and my desire to come to Barcelona was too big to stay at Inter."

And he revealed that Inter president Massimo Moratti had given him permission to leave several months ago should an offer from Barca arrive.

"Moratti helped me in every way, he did everything for me and my family," he said.

"I said to Moratti a few months ago: 'Nobody can get me, only one club can get me and that's Barcelona', and he told me: 'if you want it like that you will get it like that'.

"So all my respect, because it is not easy to sell player that means so much to the team."

And the 27 year-old hopes to emulate Samuel Eto'o.

"I'm not coming here to be Samuel Eto'o, I'm somebody else, somebody new, but I will try to achieve as much as Eto'o, or even more," he said.

Barca president Joan Laporta hailed the Swede's arrival.

"He is not a conformist, he is ambitious, a winner, an authentic man with strong feelings and he wanted to come to Barcelona," he said.

"(Coach) Pep (Guardiola) said that Zlatan was the ideal player for us, so we are really happy to have him here."

Ibrahimovic has a fractured hand and will undergo an operation on Tuesday.

The former Juventus, Ajax and Inter striker will travel with the team to the United States, but will miss the friendly with Manchester City on August 19.

But Barca sporting director Txiki Begiristain announced that he is set to return for the second leg of the Spanish Super Cup against Athletic Bilbao four days later.

Begiristain says Ibrahimovic is the complete striker.

"He has great technical quality, can adapt perfectly to how we play and can hold the ball up - he is a complete player," he said.