Abstract: Sheet feeding apparatus comprises longitudinally and laterally adjustable stacking members for retaining on a support tray one or more stacks of sheets to be fed from a feed opening exposing an end portion of the bottom sheet. Flexible spring lips form an adjustable width support ledge at the front of the feed opening which supports the front end of each stack of sheets. About 8 or more relatively closely spaced suction cups, encompassing the length of the feed opening and preferably supported on the top of a pneumatic tube, are raised with the tube to engage the bottom-most sheet in the stack. The pneumatic tube is mounted for pivotal movement upon a rockable carrier framework. The tube inclination and position relative to the sheet engaged by the suction cups are varied in a manner to ensure reliable removal of only one sheet at a time by the suction cups which pull the sheet with a wiping contact against the deflected ledge-forming spring lips.