Printout that enables the user to easily know printed information is produced. A print data acquisition unit 11 acquires, as part of the print data, code information that is information for printing a code image 30 and contains at least one attribute data set including an identifier and a parameter. A storage unit 15 associates and stores the identifier to style information and a condition for determining whether to apply the style. An attribute data set extraction unit 12 extracts from the code information the attribute data set containing an identifier stored in the storage unit 15. A condition evaluation unit 13 determines if the parameter contained in the extracted attribute data set satisfies the condition associated in the storage unit 15 to the identifier contained in the attribute data set. When the parameter is determined to satisfy the condition, a print command unit 19 applies a print command to the printer based on the style information associated to the identifier.