The winger is said to be one of the Ligue 1 champions' top transfer targets as they look to build on a 2013-14 season that saw them win the Coupe de la Ligue and the Trophee des Champions in addition to retaining the French crown.
PSG added to their close-season recruits on Wednesday by signing Serge Aurier on a season-long loan from Toulouse, the right-back following Brazil centre-back David Luiz to the Parc des Princes.
"We wanted to recruit a right-back with great potential, this is the case with Serge," Blanc said.
"He is a young player who has big room for improvement. In Paris, he will discover the requirements of a major European team."
On Di Maria he added: "I'll leave you to speculate. At the moment nothing is done.
"Are there negotiations? It's not for me to say, but for the board of the club."
