paper.js with tablet pressure + pdf data generation
tested with Chrome, FireFox(ok) and IE(fail)
To draw, you need wacom tablet and driver installed
(it also installs webtablet plugin).
You can save your drawing as a pdf file.
Click generate pdf link at the top of the page. Copy the content of the textarea. Paste it into a plain text editor and save it with ".pdf" extention.
Note that you must save with return code CRLF.
generates PDF data from PaperScope object (paper) of Paper.js.
required library: paper.js
See inside the script for details.
Paper.js - a JavaScript Vector Graphics Library.
Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
http://paperjs.org/
Distributed under the MIT license.