Here is the patch
--- pdflib_lite.mk.old 2012-08-01 01:40:53.183528083 +0200
+++ pdflib_lite.mk 2012-08-01 01:43:59.371524797 +0200
@@ -6,7 +6,7 @@
$(PKG)_CHECKSUM := 5b2bf5edc49dba3da0997ade0e191511a37fae01
$(PKG)_SUBDIR := PDFlib-Lite-$($(PKG)_VERSION)
$(PKG)_FILE := PDFlib-Lite-$($(PKG)_VERSION).tar.gz
-$(PKG)_URL := http://www.pdflib.com/binaries/PDFlib/$(subst
.,,$(word 1,$(subst p, ,$($(PKG)_VERSION))))/$($(PKG)_FILE)
+$(PKG)_URL := https://distfiles.macports.org/pdflib/$($(PKG)_FILE)
$(PKG)_DEPS := gcc
define $(PKG)_UPDATE