1. A control method for typesetting a text line, comprising: setting a coordination line for the text line to coordinate a plurality of characters for typesetting the text line; determining dimensions of each of the plurality of characters to be typeset on the text line; determining an embox for each of the plurality of characters, the vertical and horizontal size of each embox being said determined character dimensions, comparing the plurality of characters to be typeset on the text line with at least one preselected reference character belonging to the same font, and determining a coordination point for each of the plurality of characters in their said respective embox based on the result of the comparison; and coordinating said coordination point for each of the plurality of characters with said coordination line to typeset said plurality of characters on the text line.