An image forming system includes an image distribution device and a printing device. The printing device forms a print image by combining a frame image data and a variable data, which are included in print image data managed by the image distribution device, the frame image data includes an image applied commonly to a plurality of print materials, and the variable data includes information changed for each print material. The printing device generates a list of pieces of attribute information about respective ones of a series of print images formed based on the print image data, and the pieces of attribute information are arranged in accordance with order in which the series of print images are printed and are presented as information that a user can identify. The printing device performs control so that respective ones of the series of print images and the list are printed.

A printing system includes a printing unit, a position determiner that randomly determines a position where a first information code is to be set, a modifier that modifies print data for printing an image, the first information code, and a positional information code having recorded therein positional information at the time of printing that indicates the position determined by the position determiner so that the first information code is set at the position determined by the position determiner, an acquirer that acquires the position of the first information code on a print medium as positional information and acquires the positional information at the time of the printing from the positional information code, and a determiner that determines whether the printing result is a falsified matter based on comparison of the positional information after the printing with the positional information at the time of the printing.

Provided is an image forming apparatus including: an obtainment unit configured to obtain print data including drawing commands; a first image processing unit configured to perform conversion of color information for drawing an object having a non-image attribute among objects to be drawn by the drawing commands; a command execution unit configured to generate raster image data based on the drawing commands; a storage configured to store the generated raster image data to perform predetermined output; a second image processing unit configured to perform conversion of color information on an object having a picture attribute in the generated raster image data; and a control unit configured to perform the predetermined output in a case where a predetermined condition is met.

A print data editing device performs editing print data such that when dots constituting an input image represented by the print data are compared by units of columns before and after performing the editing, a coincidence is maximized when an image of each column in the input image after the editing is the same position as an image of the corresponding column in the input image before the editing or is shifted by a corresponding shift amount relative to the image of the corresponding column in the input image before the editing and an editing condition is met. The editing condition includes that an absolute value of at least one shift amount is one dot or greater, an absolute difference value for any two neighboring columns is one dot or less, and at least one absolute difference value for all possible combinations of two columns is less than one dot.

Provided is an image processing apparatus including an image processing unit that generates a binary image in which the width of a black line has been changed, the binary image constituted by black and white pixels. The image processing apparatus includes a first replacement unit that replaces a white pixel in a first binary image by a black pixel and replaces a black pixel in the first binary image by a white pixel, to generate a second binary image, and a second replacement unit that replaces, in the second binary image in which the width of a black line has been thickened by the image processing unit, a white pixel by a black pixel and replaces a black pixel by a white pixel.

A colorimetric method is executed by a server that communicates with an information processing apparatus coupled to a printing apparatus and to a colorimetric device. The method includes: creating work information that includes print commanding information related to a command to print a chart image based on chart information and also includes colorimetry commanding information related to a command to perform colorimetry for the chart image; storing the work information; transmitting the print commanding information to the information processing apparatus; causing the information processing apparatus to command, according to the print commanding information, the printing apparatus to print the chart image; transmitting the colorimetry commanding information to the information processing apparatus; and acquiring colorimetry result information created as a result of the colorimetry performed for the chart image by the colorimetric device.

After printing cue marks and front surface images on the front surface of web paper by a printing station, an image data elongation-contraction processor creates corrected back surface image data based on elasticity information, and a printing station prints back surface images based on the corrected back surface image data, on the back surface of the printing medium. At this time, a page interval calculator calculates a page interval from an interval between the cue marks detected by a detector, and a difference computing unit calculates differences between the page interval and image size in a transport direction of the corrected back surface image data. Since these differences indicate shifts of the correction based on the elasticity information, optimal elasticity information can be set by revising the elasticity information with these differences through a setting unit. Consequently, the operator of the apparatus can easily set optimal elasticity information based on the differences.

The image processing apparatus includes: a color conversion unit configured to convert an input color space of the document image data into a device-dependent color space specified by the plurality of color materials; and an output unit configured to output the document image data converted into the device-dependent color space, and the color conversion unit performs, in a case where the document image data includes a first kind of object and a second kind of object different from the first kind, the conversion by selectively applying a first color conversion method of converting data corresponding to the first kind of object into data represented in a first color space and a second color conversion method of converting data corresponding to the second kind of object into data represented in a second color space different from the first color space within one print job.

A printing control apparatus includes a processor configured to receive instruction information including print data and post-processing information indicating content of post-processing scheduled to be performed on paper on which an image based on the print data is printed, and, in a case where the post-processing included in the instruction information is not performed by a post-processing apparatus, generate an auxiliary image that assists a user to perform the post-processing, based on the post-processing information, and print the auxiliary image, together with the image based on the received print data, on the paper.

A message providing device includes a receiving section that receives a registration request for setting information regarding an operation of a software robot program for each user, the software robot program operating on a message service in which a message is transmitted and received between users, to transmit and receive the message to and from a user, a registration section that registers setting information for a first user in association with identification information of the first user, in response to the registration request from the first user, and a control section that performs control such that at least a portion of the registered setting information for the first user is registered as setting information for a second user in association with identification information of the second user, corresponding to transmission and reception of a message between the first user or the second user, and the software robot program.