A machine for working a relatively rigid material, comprising: - a support structure disposed transverse to a direction of feed of sheet; - a drawing unit able to move a sheet of relatively rigid material in said direction of feed; - at least two longitudinal operating groups for cutting, creasing and pre-creasing the sheet of relatively rigid material mounted on said support structure and disposed in sequence with respect to each other to operate a direction substantially parallel to said feed direction; - a transverse operating group for cutting, pre-creasing and creasing the sheet of relatively rigid material mounted on said support structure positioned upstream of said longitudinal operating groups to operate in a transverse direction substantially transverse to said feed direction; wherein each longitudinal operating group comprises a plurality of longitudinal operating units which support, move and command a working tool, and said transverse operating group comprises a plurality of transverse operating units which support, move and command a working tool, wherein said longitudinal and transverse operating units (20a, 20b) are independent from each other and mobile in said transverse direction, said working tool comprising a cutting tool or a continuous creasing tool or a discontinuous creasing tool; wherein each of said longitudinal and transverse operating units (20a, 20b) has a respective pneumatic drive unit for promoting the movement of descent or ascent of the corresponding working tool (32, 34, 42); wherein each pneumatic drive unit comprises two pairs of pneumatic drive members each provided with two double-effect pistons configured to work parallel and in tandem, said pneumatic drive unit being provided with a pneumatic tool-descent circuit and a pneumatic tool-ascent circuit both able to supply a pressurized fluid to said double-effect pistons; characterized in that upstream of said pneumatic tool-descent circuit and said pneumatic tool ascent circuit there being provided a feed pipe that is connected to a pressurized fluid delivery device, a switching valve being installed in correspondence of said feed pipe and mounted directly on board of said pneumatic drive unit for connection to said pneumatic tool-descent circuit and said pneumatic tool ascent circuit to determine a pneumatic condition of descent, or ascent, of said two pairs of the pneumatic drive members and of the respective tools (32, 34, 42) and reduce the response times in determining said pneumatic conditions. - a support structure disposed transverse to a direction of feed of sheet; - a drawing unit able to move a sheet of relatively rigid material in said direction of feed; - at least two longitudinal operating groups for cutting, creasing and pre-creasing the sheet of relatively rigid material mounted on said support structure and disposed in sequence with respect to each other to operate a direction substantially parallel to said feed direction; - a transverse operating group for cutting, pre-creasing and creasing the sheet of relatively rigid material mounted on said support structure positioned upstream of said longitudinal operating groups to operate in a transverse direction substantially transverse to said feed direction; wherein each longitudinal operating group comprises a plurality of longitudinal operating units which support, move and command a working tool, and said transverse operating group comprises a plurality of transverse operating units which support, move and command a working tool, wherein said longitudinal and transverse operating units (20a, 20b) are independent from each other and mobile in said transverse direction, said working tool comprising a cutting tool or a continuous creasing tool or a discontinuous creasing tool; wherein each of said longitudinal and transverse operating units (20a, 20b) has a respective pneumatic drive unit for promoting the movement of descent or ascent of the corresponding working tool (32, 34, 42); wherein each pneumatic drive unit comprises two pairs of pneumatic drive members each provided with two double-effect pistons configured to work parallel and in tandem, said pneumatic drive unit being provided with a pneumatic tool-descent circuit and a pneumatic tool-ascent circuit both able to supply a pressurized fluid to said double-effect pistons; characterized in that upstream of said pneumatic tool-descent circuit and said pneumatic tool ascent circuit there being provided a feed pipe that is connected to a pressurized fluid delivery device, a switching valve being installed in correspondence of said feed pipe and mounted directly on board of said pneumatic drive unit for connection to said pneumatic tool-descent circuit and said pneumatic tool ascent circuit to determine a pneumatic condition of descent, or ascent, of said two pairs of the pneumatic drive members and of the respective tools (32, 34, 42) and reduce the response times in determining said pneumatic conditions.