Open source printer driver

An open source printer driver and corresponding method are provided. The method comprises: accepting a printer driver customization command; modifying a default printer driver algorithm in response to the customization command; building a print job in a printer-ready format using the modified printer driver algorithm. In one aspect, an addendum file is attached to an electronically formatted document. Then, a user interface (UI) is created for the selection of print options, and auxiliary print options are supplied from the addendum file. The print job is built using the auxiliary print options. Alternately, the auxiliary print options can be used to build a portion of the document, and default print options used to build another portion. In a different aspect, an API is used to accept an executable code plug-in module. Then, the printer driver executable code default module is replaced with the executable code plug-in module.