Abstract: In a print service method for a printing system, text data contained in a mail received by a mobile phone owned by a user, and attachment file data attached to the received mail are downloaded into the printing system from the mobile phone. Application software corresponding to the attachment file data is selected from application software stored in the printing system, thereby opening the attachment file data by using the selected application software. The text data and the attachment file data opened by the selected application software are printed onto a printing medium.