This document describes the licensing of DoubleType not this website. This website is copyrighted by e.e d3si9n, and all content on this website, unless otherwise noted, is licensed under a Creative Commons License.
Copyright of DoubleType belongs to the author, e.e d3si9n. The author distributes the program under GNU General Public License with a condition that DoubleType may be linked to publically available Java platforms (even if it's not GPL'ed).
DoubleType includes some source code written by others, and distributed under non-GPL license. They are Mr. Asami who wrote Relaxer and IBM who wrote ICU4J. Both parties have fairly lenient licenses which does not conflict with GPL.
In short, you may use DoubleType however you want it, but if you change the source code and publicize it, you must follow my modified GPL for the portion of the program written by e.e d3si9n.
Note that the copyright of anything generated by DoubleType belongs to the user and I have no say in it. So if you build TrueType font with it, you may make it open source or keep it closed and use it commercially.
copyright (c) 2003-2004, e.e d3si9n
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This Program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
In addition, as a special exception, e.e d3si9n gives permission to link the code of this program with any Java Platform that is available to public with free of charge, including but not limited to Sun Microsystem's JAVA(TM) 2 RUNTIME ENVIRONMENT (J2RE), and distribute linked combinations including the two. You must obey the GNU General Public License in all respects for all of the code used other than Java Platform. If you modify this file, you may extend this exception to your version of the file, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.
DoubleType contains source code generated by Relaxer.
Relaxer/License says it's BSD derived, The Relaxer artifact license is much closer to MIT License.
The Relaxer artifact
Copyright (c) 2000-2004, ASAMI Tomoharu, All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
DoubleType contains source code from ICU4J (International Components for Unicode for Java) written by IBM.
The ICU projects (ICU4C and ICU4J) use the X license. The X license is a non-viral and recommended free software license that is compatible with the GNU GPL license. This became effective with release 1.8.1 of ICU4C and release 1.3.1 of ICU4J in mid-2001.
COPYRIGHT AND PERMISSION NOTICE
Copyright (c) 1995-2001 International Business Machines Corporation and others
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, provided that the above copyright notice(s) and this permission notice appear in all copies of the Software and that both the above copyright notice(s) and this permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization of the copyright holder.