There is disclosed a printing system which can limit users who access a hot folder as a common folder, and need not prepare for another server only for user management. In a printing system of this invention, a management server monitors digital data stored in the hot folder, and limits users who can access the hot folder. When the management server detects that print data is input to the hot folder, a user verification dialog is displayed on a computer as a print data input source to make user verification. When the user verification has succeeded, the digital data input to the hot folder is printed using a printer; when the user verification has failed, the print process of the digital data input to the hot folder using the printer is canceled, thereby limiting the user who accesses the hot folder.