A device far placement of a card in a sheet, the device having one support plaque of the sheet, with windows for insertion of the corners of the card, cutting blades facing the windows to be displaced through the windows to provide oblique cuts on the sheet. The device further has a card holder plaque for fastening the card in a window, wherein part of the contour of this window is level with the route of the blades. Pushers are moveable towards the support plaque, facing the windows of the support plaque, for insertion of the corners of the card through the oblique cuts of the sheet. The cutting blades and of the pushers are displaced by an actuator.