Jackman is the current player of the year at Sixfields and insists he will be at the club next season even if they do go down.
He said: "I'm contracted to the club so I will be here next season. The mess we're in at the moment I am part of because I've played pretty much every game.
"I can't get away from that fact and neither do I want to. I won't be shying away from it if we do get relegated.
"The manager can only pick the 11 that go out there. It's up to us once we cross that white line to produce."