the case where the color film 3 has thereon a magnetic layer specified magnetic information recorded on the magnetic layer is read out by magnetic information reading means 10 provided on a conveyance path for color film 3 that is on this side of a color developing tank namely the magnetic information reading means 10 reads out specified magnetic information recorded on the magnetic layer before a series of color developing bleaching fixing and stabilizing processes which will be described later are conducted for color film 3 now the color film 3 is subjected to color developing processing in color developing tank 4 to bleaching processing in bleaching tank 5 to fixing processing in fixing tank 6 to stabilizing processing in stabilizing tank 7 and finally to drying processing in drying section 8 to be ejected out with regard to color film 3 which is on the way from fixing tank 6 to stabilizing tank 7 image data are acquired by image data acquiring means 11 from images recorded on the color film 3 as the image data acquiring means 11 there is used ccd that acquires image data through photoelectric conversion further on a path for color film 3 to go to image data.