Patent ID: 8810836

Claim:
A printing server which accumulates print data and creates image data representing an image based on the accumulated print data and an additional image to be added to the image, comprising: a single-side determining section for determining whether or not a print data to be accumulated is created to form an image based on the print data on only one side of a recording paper; a creating section for creating display data for displaying that the additional image is formed on the other side of the recording paper so as to display an image corresponding to the additional image together with an image based on the print data to be accumulated on other apparatus, when the single-side determining section determines that the print data is created to form the image based on the print data on only one side of the recording paper; a transmitting section for transmitting display data created by the creating section to the other apparatus; and a receiving section for receiving information showing whether or not the print data can be accumulated from the other apparatus; wherein when the receiving section receives information showing that the print data can be accumulated, the print data to be accumulated is accumulated, the printing server further comprises, a determining section for determining whether or not the accumulated print data is created to form an image based on the print data is formed on only one side of the recording paper, wherein when the determining section determines that the accumulated print data is created to form an image based on the accumulated print data on only one side of the recording paper, the image data is created so that the additional image is formed on the other side of the recording paper.