PHP Manual: PDF_add_launchlink
PDF_add_launchlink
Description
bool PDF_add_launchlink ( resource pdfdoc, float llx, float lly, float urx, float ury, string filename )Adds a link to a web resource.
This function is deprecated since PDFlib version 6,
use PDF_create_action() with
type=Launch and
PDF_create_annotation() with
type=Link instead.