The CDP reference documentation (excluding tutorials) has now been converted into printable PDF format and can be accessed here:
http://www.ensemble-software.net/cdpdocs.html
This page has links to download the PDF docs as well as the HTML docs as zip files, and also to view individual PDFs online. There is a link to the online HTML docs, which is also duplicated in the menu (CDP > Online Documentation > CDP Docs Home Page).
(Various charts and a couple of papers were already online as PDFs and are included within the HTML zip.)