A medium handling device is provided including a stage on which a rectangular shaped medium is stacked in an vertical direction, and a liquid spraying mechanism including plural liquid spray nozzles that extend along the vertical direction and that spray a liquid at a medium stacked on an upper face of the stage. The plural liquid spray nozzles are respectively provided at positions facing at least three side edges of the stacked medium, and each of the plural liquid spray nozzles is disposed so as to spray the liquid at a specific spray angle with respect to the respective facing side edge.