PHP Manual: fdf_set_ap
fdf_set_ap
Description
bool fdf_set_ap ( resource fdf_document, string field_name, int face, string filename, int page_number )Sets the appearance of a field (i.e. the value of the /AP key).
Parameters
fdf_documentThe FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
field_namefaceThe possible values FDFNormalAP, FDFRolloverAP and FDFDownAP.
filenamepage_number