Various embodiments illustrated and described herein provide one or more of systems, methods, and software operable to process multilayered documents including form fields. Some embodiments, are operable to process a new or modified background layer image to identify input fields, to match the identified fields with metadata in foreground layer data defining interactive input fields, and to modify the mappings of the input fields defined within the foreground layer of a page description language document as a function of identified input fields in the modified background layer image.