The playmaker has suffered from inconsistency ever since his move to les Parisiens in 2011, but his representative insists he will remain at Parc des Princes next season
The 24-year-old arrived at Parc des Princes from Palermo for a reported €39.8 million in 2011 but has yet to live up to his sizeable price tag following two inconsistent campaigns.
That has led to reports Pastore could move to Serie A outfit Roma in the summer transfer window, but the player's representative has moved to dispell those rumours.
He told calciomercato.com: "Pastore to Rome? Impossible because PSG have never made him available for sale."
It has been a high-profile summer of activity for les Parisiens, with coach Carlo Ancelotti leaving for Real Madrid after winning the Ligue 1 title and sporting director Leonardo also departing following his 13-month suspension for pushing a referee.
Laurent Blanc has since been installed as Ancelotti's replacement and swiftly made his mark by securing the services of Uruguay striker Edinson Cavani in a €64 million deal.
PSG face Real Madrid in a pre-season friendly in Sweden on Sunday before kicking off their league season against Bordeaux on August 3.