http://cutycapt.sourceforge.net/
CutyCapt
CutyCapt is a small cross-platform command-line utility to capture WebKit's rendering of a web page into a variety of vector and bitmap formats, including SVG, PDF, PS, PNG, JPEG, TIFF, GIF, and BMP. See IECapt for a similar tool based on Internet Explorer.
Samples
Here are some samples of CutyCapt generated renderings: