A method and a system are disclosed for the automatic substitution of font with a toner saving font. Dynamic substitution of document specified fonts with a toner saving font can reduce the amount of toner used and minimize system resource usage that can slow printing speeds. Substitution software first determines whether a document print request matches a set of predefined conditions. If the document print request does not match all of the conditions, the inquiry ends. Substitution software then determines whether font substitution is selected or mandated at any level of print control. Where a document print request matches all of the predefined conditions and where font substitution is selected or mandated at any level of print controls, the substitution software performs a font substitution to replace original font with a toner saving font.