If it is determined that a sheet on which image data of the front cover is to be printed is the particular sheet, a printing apparatus prints on sheets the image data of the body in an order from an end of the body toward a head of the body, discharges the printed sheets without reversing, finally prints image data of the front cover on the particular sheet, and discharges the particular sheet without reversing by the reversing unit, or firstly prints a mirror image of the image data of the front cover on the particular sheet, discharges the particular sheet without reversing, next prints on sheets the image data of the body in an order from the head of the body toward the end of the body, reverses these printed sheets and discharges these printed sheet.

An image processing device includes an external memory interface to write image data to an image memory, and an inclination correction circuit. The inclination correction circuit generates coordinate information based on inclination information, detects, from the coordinate information, a minimum sub-scanning coordinate in each of divided areas of the image data, generates first read addresses for reading the divided areas of the image data from the image memory based on the minimum sub-scanning coordinate, reads the divided areas of the image data from the image memory based on the first read addresses, writes the divided areas of the image data to an internal memory, generates second read addresses for reading the divided areas of the image data from the internal memory based on the coordinate information, and reads the divided areas of the image data from the internal memory based on the second read addresses.

A history generating apparatus includes an image generating section, an image reading section and a history generating section. The image generating section generates a bitmap first image and generates initial attribute information indicating attributes of respective pixels of the first image. The image reading section reads an image based on the first image formed on paper so as to generate a bitmap second image. The history generating section separates the second image into image regions by attribute indicated by the initial attribute information, performs image processing on each of the image regions according to the attribute and combines the image regions so as to generate a history image.

If it is determined that a sheet on which image data of the front cover is to be printed is the particular sheet, a printing apparatus prints on sheets the image data of the body in an order from an end of the body toward a head of the body, discharges the printed sheets without reversing, finally prints image data of the front cover on the particular sheet, and discharges the particular sheet without reversing by the reversing unit, or firstly prints a mirror image of the image data of the front cover on the particular sheet, discharges the particular sheet without reversing, next prints on sheets the image data of the body in an order from the head of the body toward the end of the body, reverses these printed sheets and discharges these printed sheet.

An information processing apparatus includes an obtaining unit configured to obtain information on the type of printing process in a case where target data is printed, an acceptance unit configured to accept an operation to lay out the target data in a layout area, and a notification unit configured to provide a notification about target data to be laid out in the layout area in a case where target data whose type of printing process is different is included in the layout area by an operation to lay out the target data accepted by the acceptance unit in the layout area.

An information processing system includes a processor configured to: acquire document image data in a first format and document image data in a second format different from the first format, generated from a document including a plurality of pages; when the document image data in the first format includes reusable image data of the page of the document to regenerate the document image data in the second format in response to a change in a layout of the page of the document; extract the reusable image data of the page from the document image data in the first format; and regenerate the document image data in the second format by using the extracted image data of the page.