To provide a stencil printing system capable of utilizing potential of a color scanner even if having configuration and specification where an image-forming engine is on a monochrome basis with the color scanner.

The stencil printing system comprises: reading means for reading a document and a color command sheet on which specific areas on the document are designated by multiple colors, as a color image; analysis means for analyzing words in a specific area designated by the color command sheet in the document read by the reading means; and translation means for translating words in the specific area designated with a first color among the words analyzed by the analysis means.