A printing control apparatus and method thereof are provided that provide a clone printing option for printing a plurality of identical printing-object documents of a certain clone size on a single sheet of printing paper. The apparatus includes an application program unit for creating a printing-object document in a certain size, and a printer driver unit for modifying the size of the created document to a clone size by transferring the clone size to the application program unit when the clone size is determined, and creating print data by applying the clone printing option to the modified document. Accordingly, margins occurring on the sheets of printed paper are minimized without having image distortion, and an image can be clone printed in the size that a user desires.