(PHP 4, PECL pdflib >= 1.0.0)
PDF_add_pdflink — Add file link annotation for current page [deprecated]
$pdfdoc
   , float $bottom_left_x
   , float $bottom_left_y
   , float $up_right_x
   , float $up_right_y
   , string $filename
   , int $page
   , string $dest
   )
   Add a file link annotation to a PDF target.
   Returns TRUE on success or FALSE on failure.
  
   This function is deprecated since PDFlib version 6, use
   PDF_create_action() with
   type=GoToR and
   PDF_create_annotation() with
   type=Link instead.