A character information processing apparatus prints at least one line of an input character string on a printing medium having a size limited at least in width thereof. There is stored information of settings concerning at least one attribute of a first kind of predetermined attributes concerning a layout of characters of the input character string and a second kind of predetermined attributes which can be set to the characters of the input character string on character-by-character basis, in a manner correlating the information of the settings with the input character string. A first instruction signal is generated to start a modification process for modifying the information of the settings. In response to the first instruction signal, the information of the settings stored in the attribute information storage means is modified by using menu screens containing, as menu options, information of all settings which can be set to the first kind of the predetermined attributes and the second kind of the predetermined attributes. A second instruction signal is generated for directly instructing modification of the information of the settings. In response to the second instruction signal, the information of the settings is modified according to a cyclic order assigned to a plurality of settings of the first kind of the predetermined attributes and the second kind of the predetermined attributes.