Abstract: A pneumatic sheet separating device is provided whereby sheets in a holder can be discharged one by one from the bottom of a stack and wherein the holder is provided with a carrier and lateral supports. The carrier is permanently bent or depressed transversely of the direction of sheet transport such that it is nonplanar. In the vicinity of the deepest part of the bend or depression, the carrier is preferably provided with at least one aperture beneath at least one edge zone of a side edge of the stack of sheets in the holder, wherein a partial vacuum can be created so that the bottom sheet is sucked against the carrier. An air duct is also provided to blow air against the side edge of the stack, as considered with respect to the direction of sheet transport, to create a layer of air at least between the bottom sheet and the stack thereabove.