Send attachment through gravity form mail in WordPress

Please find below code to send any documnet, PDF send through mail

/* Gravity forms */
function wdm_add_attachment( $notification, $form, $entry ) {
$upload_dir = wp_upload_dir();
$notification[“attachments”] = $upload_dir[‘basedir’].’/pdf/order_new.pdf’;
return $notification;

add_filter(“gform_notification”, “wdm_add_attachment”, 9, 3);


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