You might need to refer to Cloud Cruiser documentation at a time when you don't have access to this site. For example, when you're on an airplane or when you're at a financial or military facility that blocks access to the Internet. You can export articles to a PDF file to bring with you to such locations.
The PDF opens in your browser, from which you can save it to your local drive.
For more detailed instructions on this process, see the documentation for MindTouch, the software that powers this site.