(PHP 4, PECL pdflib >= 1.0.0)
PDF_add_pdflink — Add file link annotation for current page [deprecated]
Add a file link annotation to a PDF target. 成功时返回 TRUE, 或者在失败时返回 FALSE.
This function is deprecated since PDFlib version 6, use PDF_create_action() with type=GoToR and PDF_create_annotation() with type=Link instead.