1. A method of processing a document within a data processing system including a user application, said method comprising: in response to a selected input, creating a base document utilizing said user application, wherein said base document is defined by a data set stored within said data processing system; in response to identification of a portion of said base document as a variable data area in which different data will be presented for at least two presentation copies of said document, building, within said data set, at least one comment statement of a page description language, wherein said at least one comment statement is associated with said variable data area; and encoding format parameters of said variable data area within said at least one comment statement.