A printing system comprising: a printing apparatus; a printing service system connected to the printing apparatus; and an information processing apparatus (103, 104) connected to the printing service system, the printing service system including: registering means for registering the printing apparatus; and storing means for storing a print job received from the information processing apparatus (103, 104), the information processing apparatus (103, 104) including: transmission means for transmitting, to the printing service system, a print job of a logged-in user in which a printing apparatus selected from among at least one printing apparatus registered in the printing service system is designated, the printing apparatus including: storing means for storing a user of the printing service system in association with a user of the printing apparatus; and printing means for fetching a print job of a user associated with a logged-in user of the printing apparatus, out of at least one print job stored in the printing service system, and executing printing, wherein a guest user of the printing service system is associated with a guest user of the printing apparatus, characterized in that the printing apparatus is configured to transmit a job fetch request for a print job and to receive print job data in response, and wherein the printing apparatus is configured to cancel the fetching of print job data if the job owner is a guest user and upon determining that the received job data does not include attribute information indicating that a password has been set for said print job. a printing apparatus; a printing service system connected to the printing apparatus; and an information processing apparatus (103, 104) connected to the printing service system, the printing service system including: registering means for registering the printing apparatus; and storing means for storing a print job received from the information processing apparatus (103, 104), registering means for registering the printing apparatus; and storing means for storing a print job received from the information processing apparatus (103, 104), the information processing apparatus (103, 104) including: transmission means for transmitting, to the printing service system, a print job of a logged-in user in which a printing apparatus selected from among at least one printing apparatus registered in the printing service system is designated, the printing apparatus including: storing means for storing a user of the printing service system in association with a user of the printing apparatus; and printing means for fetching a print job of a user associated with a logged-in user of the printing apparatus, out of at least one print job stored in the printing service system, and executing printing, storing means for storing a user of the printing service system in association with a user of the printing apparatus; and printing means for fetching a print job of a user associated with a logged-in user of the printing apparatus, out of at least one print job stored in the printing service system, and executing printing, wherein a guest user of the printing service system is associated with a guest user of the printing apparatus, characterized in that the printing apparatus is configured to transmit a job fetch request for a print job and to receive print job data in response, and wherein the printing apparatus is configured to cancel the fetching of print job data if the job owner is a guest user and upon determining that the received job data does not include attribute information indicating that a password has been set for said print job.