I always use a smear of Ceratec on pad backplate and pins. Using a flat blade screwdriver to push down on centre of each pad spring, to take pressure off pins, you should be able to push latter out by hand aided by a suitable size drift.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone