A client subsystem is provided for use with a network printing system including a client communicating with one or more of a plurality of print-related devices by way of a network connection. An electronic document is developed at the client and placed into a printable format with a print driver. The electronic document in the printable format includes a set of attributes respectively corresponding with a set of attribute values, the set of attribute values controlling a manner in which the electronic document is to be processed at a selected one of the plurality of print-related devices. The client subsystem includes a document routing system, communicating with the print driver and a spooler, for facilitating transmission of the electronic document in the printable format from the print driver to the spooler. A print assistant, communicating with the document routing system, changes the set of attribute values, independently of the print driver, when at least a portion of the electronic document in the printable format has been routed to the spooler by the document routing system. The set of attribute values is finalized at the spooler when the user indicates that the job is ready to be printed, at which point the job submission is completed.