Striker Ibrahimovic and his Milan team-mate, defender Thiago Silva, are potentially set to join the French club for a joint fee in excess of £50 million.
However Ibrahimovic's agent, Mino Raiola, claims there is still a lot of work to be done on his client's side of the deal.
"There is still no agreement," Raiola told French news agency AFP. "We continue to work and when everything is settled, we will give a press conference."
Raiola left the French capital on Friday after two days of meetings with club representatives, including sporting director Leonardo.
Reports in France claim that PSG's club doctor, Eric Rolland, had flown out to Brazil to complete Silva's medical, and Raiola said a similar arrangement could be made with regards to his Swedish client after he denied the 30-year-old was on his way to Paris on Saturday night.
"Where it is done is not important," Raiola added.
Milan president Silvio Berlusconi has said that the sale of his two star players could save the club 150m euros over the next two years.