An image processing system that can remove unnecessary blank parts in print data, thereby achieving sheet saving and efficient print output at the time of printing and copying. Data is inputted to an information processing apparatus of the system, and at least one object is extracted from the data. Out of the extracted object, at least one object to be reduced or enlarged is designated, and then reduced or enlarged. The data including the reduced or enlarged object is searched to find at least one blank part in the data, and the reduced or enlarged object is moved to the found blank part. After the reduced or enlarged object has been moved, a blank part generated on the data is deleted from the data.