The PDF nautical charts are available for a three-month trial period, from October 22, 2013, to January 22, 2014.
http://www.nauticalcharts.noaa.gov/pdfcharts/
For the three-month trial period, NOAA is providing about a thousand
high-resolution printable nautical charts—almost the entire NOAA
suite of charts—as PDF files. The PDF nautical charts, which are exact
images of the traditional charts currently printed by lithography,
will be available for free download on October 22. Coast Survey will then evaluate usage and user feedback to decide whether to continue the service.
