=== HTTP code : 200 ===

HTTP/1.1 200 OK
Date: Sun, 13 Jan 2013 00:09:03 GMT
Server: Apache
Last-Modified: Tue, 18 Sep 2012 00:27:45 GMT
ETag: "51c402a-c717-4c9eef58563c0"
Accept-Ranges: bytes
Content-Length: 50967
Vary: Accept-Encoding
Content-Type: application/pdf


Link is valid.