8. The apparatus according to claim 5 , wherein when the third setting item is set in the processing setting information, said typeface setting processing unit executes, based on the setting contents: reference processing for referring to a typeface table, which manages substitute typeface information including a typeface and a substitute typeface as a substitute for the typeface, based on the typeface information of the first character and the typeface information of the second character, which are located before and after the position of the input character; selection processing for selecting the substitute typeface information from the substitute typeface information referred to by the reference processing; and specifying processing for specifying a character that uses the substitute typeface information selected by said selection processing, and said typeface setting processing unit settles the substitute typeface information selected by the selection processing as typeface information of the character specified by the specifying processing.
5. The apparatus according to claim 4 , further comprising: a typeface setting processing unit adapted to, when the flag for the input character is set to ON, execute the typeface setting processing based on the processing setting information stored in said storage unit.