In a device for trimming the top edge, bottom edge and opening edge of a printed product, for example a newspaper, the printed product is transported through A cutting region of a connected cutting unit in a closed clamp of a synchronously driven conveying apparatus. The conveying apparatus is configured as a conveying rotor and the clamps are guided past a transfer station for loading on a circulating path and past a delivery station for delivering a printed product in an open position. The printed product is trimmed in the cutting region of the cutting unit which is arranged between the transfer station and the delivery station and in which the printed product is clamped in the closed clamp.