Page description data processing apparatus, page description data processing method, and recording medium

摘要

Before page description data are input to a raster image processor (RIPa) that plots an overprint of a shading object in process colors in the nonzero overprint mode, the page description data are converted into robustized page description data wherein minimum values of process colors are replaced with small values which are not of 0. The robustized page description data are input to the RIPa.