A printing system includes a terminal apparatus and a printing apparatus. The terminal apparatus includes: a first inputting section; and a processor configured to: transmit a print request for printing an object image indicated by object data to the printing apparatus; receive first input authentication information inputted by a user; and transmit the first input authentication information to the printing apparatus. The printing apparatus includes: a second inputting section; a printing section; a processor configured to: receive the print request; store the object data and associated authentication information included in the print request while associating with each other in a first memory; receive the first input authentication information; determine whether the first input authentication information matches the associated authentication information; receive input of second input authentication information from the user; and determine whether the second input authentication information matches the associated authentication information.