(PHP 4 >= 4.0.5, PECL pdflib >= 1.0.0)
PDF_attach_file — Add file attachment for current page [deprecated]
$pdfdoc
   , float $llx
   , float $lly
   , float $urx
   , float $ury
   , string $filename
   , string $description
   , string $author
   , string $mimetype
   , string $icon
   )
   Adds a file attachment annotation. Returns TRUE on success or FALSE on failure.
  
   This function is deprecated since PDFlib version 6, use
   PDF_create_annotation() with
   type=FileAttachment instead.