To provide an ID card difficult of forgery and an ID card manufacturing system for manufacturing the ID card.

An ID card carries a digital watermark image having information of a digital watermark form. The ID card 111 manufacturing system comprises a digital watermark image data generating means 1 inputting information for forming a digital watermark form and an image for embedding the information and generating the digital watermark image data having the information of the digital watermark form, a print output data generating means 2 for editing image data formed on the ID card except the digital watermark image data and/or text data to generate print output data of the state for print outputting it to the ID card, and a print means 3 inputting the print output data to print output it to the ID card.