1. An input-handwriting automatic transformation system comprising a display device, the system comprising: a recognizer configured to recognize handwriting input via an input pad based on data information of reference points comprising start points, end points, and bend points of the input handwriting; an extractor configured to extract a font most similar to the input handwriting from fonts stored in a memory; and a transformer configured to compare the font extracted by the extractor and the input handwriting, and automatically transform a shape of the extracted font to be most similar to a shape of the input handwriting, wherein the transformer comprises a first transformer transforming an overall shape of the extracted font to be most similar to an overall shape of the input handwriting, and a second transformer transforming a detailed shape of the extracted font to be most similar to a detailed shape of the input handwriting, and, upon the completion of the transforming of the first transformer, transforming a length of each of strokes of the extracted font to be most similar to a length of each of strokes of the input handwriting.