1. A computer implemented method of rendering graphical objects on a page by a rendering device, the method comprising: marking a first region of the page containing a graphical object as output incompatible based on the graphical object being output incompatible, said marking of the first region comprising storing, in a memory device, status data indicating that the first region is output incompatible; determining a distance of a second output compatible region from the first region, the second output compatible region containing at least a portion of an output compatible graphical object; marking the second region as output incompatible, if the determined distance satisfies a threshold, said marking of the second region comprising storing in the memory device status data indicating that the second region is output incompatible; converting graphical objects within the first and the second region as output compatible; and rendering, by the rendering device, the output compatible objects.