All the pins are held in with a catch. The harness catch differs based on the exact harness. But chances are the harness you are looking at (the real one) has a clip on the face that wraps around the side. A clip that will pry off. This will hide the catches you push in with a pick to slide the pin out.
The other I've seen in cars are catches in the front of the connector. You slide a REALLY REALLY small pick in the front of the connector where you see an access hole above each pin. Then the pins slide out.