An apparatus for compressing a stent includes a flexible sheet having a first portion curved over toward a second portion of the sheet, such that the sheet includes a generally cylindrical opening. A compression wedge and a curved surface of a platen sandwich at least the second portion of the sheet, and the compression wedge is adjacent to the generally cylindrical opening. A size of the generally cylindrical opening is changed by relative curvilinear motion of the compression wedge and the platen.