Patent ID: 7898698

Claim:
A method of creating print data, in which prior to creating in a raster image processor binary image data including a plurality of printing-plate creation data for respectively creating a plurality of printing plates for sequentially printing a plurality of print images on a printing medium, a plurality of print data, each to adjust one or more of position and shape of a print image of the plurality of print images, is created without performing mechanical position or shape correction in a printing device, wherein each of the plurality of print data includes an image type data for at least one image type constituting the corresponding print image, and a position data for determining at least one of an image type position data corresponding to a position of the image type in the print image and an image type shape data indicating a shape of the image type, wherein creating the print data includes: determining deformation information on an amount of elongation or contraction in a direction in which the printing medium is to be elongated or contracted based on a previously printed print image when the previously printed print image is made in a printing operation for the plurality of print images on the printing medium by the use of the plurality of printing plates; adjusting one or more of the position and the shape of the print image without performing mechanical position or shape correction in the printing device, wherein the adjusting includes correcting at least one position data in terms of elongation or contraction in the direction in which the printing medium is to be elongated or contracted, by changing one or both of the image type position data and the image type shape data on the basis of the deformation information; and generating the print data subjected to the correcting in terms of elongation or contraction, wherein after the print data is created the print data is binarized for creating printing-plate creation data.