An image processing system disclosed is arranged to (i) when an image processing apparatus has received document image data and image processing request information for the document image data, cause a display section of the image processing apparatus to display an execution/non-execution selection screen for allowing a user to select whether to carry out an image processing corresponding to the image processing request information and (ii) upon acceptance of an instruction from the user to carry out the image processing corresponding to the image processing request information, carry out, with respect to the document image data, the image processing corresponding to the image processing request information.