Scan Tailor 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 3 of the License, or (at your option) any later version. The GNU General Public License version 3 can be found in GPL3.txt Some parts of the program are licensed under different, but compatible with GPL3 terms. For more details, see: boost/LICENSE_1_0.txt resources/icons/COPYING