1. An image creating apparatus comprising: an inputting device for inputting creation data composed of input data and creation condition data; an image creating device for creating a two-dimensional code image based on the creation data being inputted, in the process of inputting the creation data by inputting device; a character storage device for preliminarily storing a character; a font table for storing a font size corresponding to a print size of the two-dimensional code image as a table; a font conversion device for calculating the print size of the two-dimensional code image and converting the print size into a conversion font size with reference to the font table; and an informing device for informing of the font size of the two-dimensional code image being created by the image creating device, while the creation data is being inputted, wherein an amount of the input data is adjustable based on a result from the informing device; and the informing device informs of both the conversion font size and a print object's maximum font size in which it is possible to perform printing on a print object with the print size of the two-dimensional code image.