1. A method for generating a font based on a METAFONT consisting of a letter drawing function and a style parameter, the method performed by an apparatus including a processor, the method comprising: (a) setting a fixed style parameter, wherein the fixed style parameter is included in the style parameter and corresponds to an intrinsic frame of the font designed by a font producer, and a value of the fixed style parameter is not changed; (b) generating an intermediate code by inputting the fixed style parameter in the letter drawing function; and (c) generating an output font by combining the intermediate code with a variable style parameter, wherein the variable style parameter is included in the style parameter and is set by a request from a user, and a value of the variable style parameter is changed.