Unable to download a document in pdf format from docs.adobe.com

Hello, 

Currently I'm not able to download pdf documents from docs.adobe.com.

I have read a document where in http://docs.adobe.com/docs/en/aem/6-0/deploy/configuring/offloading.html.

I wanted to download it so that I clicked on "Download as PDF" on above page but it does not work.

Just blank page displayed and nothing happened.

It looks like something wrong on the server.

Please advise.

Thanks