Abstract: An image-processing device includes: a memory that stores a color range within a color space; an acquisition unit that acquires image data; and a generating unit that generates image data in which an image represented by the image data acquired by the acquisition unit has been subjected to an operation to change a color of an image area of the image having a color falling within the color range into black, and an operation to add a black image beside the image area.

Abstract: The printing system is provided with: an image forming unit including a usage restriction of a predetermined print attribute set in print data for performing a print operation; a release character string receiving unit that receives input of a release character string for releasing the usage restriction of the print attribute included in the image forming unit within an effective range given in advance; and a usage restriction releasing unit that releases the usage restriction of the image forming unit on condition that the release character string received in the release character string receiving unit has effect of releasing the usage restriction of the print attribute included in the image forming unit.

Abstract: A printer managing apparatus includes a physical printer managing unit for managing the outputting of the attribute information of individual physical printers and controlling the outputting of a job to the physical printers, a logical printer attribute information generating unit for logically selecting the attribute information of the physical printer from the physical printer managing unit for managing attribute information of physical printers to generate attribute information of a logical printer, and a logical-printer attribute-information managing unit for managing the generated attribute information of the logical printers. With such an arrangement, the attribute information set in the logical printer is obtained from the attribute information of the individual physical printers that form the logical printer. Therefore, the attribute information of the logical printer may more properly be set than by a manager.