Jackson will earn $10m (£6m) over the next three years of his contract with the Eagles, and the club are unwilling to pay him that amount and are prepared to release the 27-year-old if they cannot trade him.
"Philly is trading him or cutting him," a source told the New York Daily News. "That's a fact. They don't want him."
Jackson recorded 82 receptions for 1,332 yards along with nine touchdowns last season.