Image forming apparatus, image processing method, program and recording medium

摘要

An image forming device comprises an image-processing unit which performs a predetermined image processing of an input image data. An output unit prints an image on a copy sheet based on the image data after the image processing. A Z-folding device is connected to the output unit and performs a Z folding of the copy sheet. A control unit controls the image-processing unit and the Z-folding device so that the image data is rotated in a direction conforming to a Z-folding direction specified by a user, and the Z folding of the copy sheet is controlled with the rotated image data.