A method of processing a page for printing includes processing each component of the page, or a portion of the page, into a display list. A plurality of element streams is generated from at least a portion of the display list. Each component of the element streams is identified as being an invariant component or a varying component. For each invariant component, it is determined whether that invariant component has been serialized into at least one of the element streams and, if not, the invariant component is serialized into at least one of the element streams and stored.