1. An image processing method comprising: an input step of inputting an image processing apparatus control code; a translation step of translating the image processing apparatus control code into a drawing object; a judging step of judging whether rendering of the drawing object is to be performed in an RGB format or YMCK format; a first rendering step of rendering a drawing object in one image, which has been obtained by translation at said translation step, in the RGB format, thereby creating an RGB image; a second rendering step of rendering another drawing object in an image the same as said one image, which has been obtained by translation at said translation step, in the YMCK format, thereby creating a YMCK image; a color conversion step of color-converting the RGB image to a YMCK image; and an output step of outputting the YMCK image created by said second rendering step and the YMCK image obtained by the color conversion at said color conversion step.