A system and related techniques generate a unified representation of graphical representations, such as documents, graphic images or others, for displaying on a display screen, printing on a printer, faxing via a facsimile machine or outputting in other ways. In embodiments a media integration layer, which may reside in the operating system level, may generate renderings from graphics primitives, and send that rendering via a mediation engine to a device driver, for instance a print engine located in a printer. The device engine may return a preview of the output representation to the media integration layer for adjustments or to accept and print the output, all without a necessity for or reliance upon a device-specific driver in the operating system. Since both the display screen and the output device operate off of the same base representation, neither the display nor output device needs to attempt to emulate the output characteristics of the other, and screen-to-print uniformity may be enhanced.