Combined printing is a printing order receiving mode that has emerged in the past two decades. After uploading files and collecting orders through the network, different files are placed in the same Juquan large edition to save the printing fee. Without the fixed expenses of the printing fee, the printing cost of a single customer will be reduced, so the selling price will also be reduced. Therefore, many enterprises or consumers who have printing needs now change to order in this way to save expenses. However, combined printing has been criticized for its unstable quality for a long time, such as serious color difference, cutting error, insufficient weight of paper, etc., which also caused some consumer disputes and returns, or changed back to the original traditional independent printing method. Traditional independent printing has the advantages of color management and quality management because it can track prints independently. However, because independent printing is required before printing, there will be fixed printing fees, and the unit price converted into printing is also relatively high.