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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#purchasing-and-sales-information">Purchasing and Sales Information</a></li>
<li class="level1"><a href="#additional-information">Additional information</a></li>
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<h1 class="title">Qt Licensing</h1>
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<p>Qt is available under three different licensing options designed to accommodate the needs of our various users.</p>
<p>Qt licensed under our <a href="commerciallicense.html">commercial license agreement</a> is appropriate for development of proprietary/commercial software where you do not want to share any source code with third parties or otherwise cannot comply with the terms of the GNU LGPL version 2.1 or GNU GPL version 3.0.</p>
<p>Qt licensed under the <a href="lgpl.html">GNU Lesser General Public License (LGPL)</a> version 2.1 is appropriate for the development of Qt applications provided you can comply with the terms and conditions of the GNU LGPL version 2.1.</p>
<p>Qt licensed under the <a href="gpl.html">GNU General Public License (GPL)</a> version 3.0 is appropriate for the development of Qt applications where you wish to use such applications in combination with software subject to the terms of the GNU GPL version 3.0 or where you are otherwise willing to comply with the terms of the GNU GPL version 3.0.</p>
<p>Please see <a href="http://qt.digia.com/licensing">http://qt.digia.com/licensing</a> for an overview of Qt licensing.</p>
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<h2>Purchasing and Sales Information</h2>
<p>To purchase or further information and assistance about Qt commercial licensing, please contact Digia Qt sales via one of the following channels:</p>
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<tr valign="top" class="odd"><td >Web:</td><td ><a href="http://qt.digia.com/contact-us">http://qt.digia.com/contact-us</a></td></tr>
<tr valign="top" class="even"><td >Phone, U.S. office (for sales in North America):</td><td ><b>+1 408 433 9320</b></td></tr>
<tr valign="top" class="odd"><td >Phone, Norway office (for sales in the rest of the world):</td><td ><b>+47 2108 0420</b></td></tr>
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<h2>Additional information</h2>
<p>The documents below list related documents, such as information about Trademark and other licenses used in parts of Qt.</p>
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<tr class="odd topAlign"><td class="tblName"><p><a href="3rdparty.html">Third-Party Licenses Used in Qt</a></p></td><td class="tblDescr"><p>License information for third-party libraries supplied with Qt.</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="android-runtime-licensing-notes.html">Android GNU C++ Run-time Licensing</a></p></td><td class="tblDescr"><p>Provides additional information about the licensing of run-time dependencies of Qt for Android</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="licenses-fonts.html">Licenses for Fonts Used in Qt for Embedded Linux</a></p></td><td class="tblDescr"><p>Information about the licenses of fonts supplied with Qt</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="licenses.html">Other Licenses Used in Qt</a></p></td><td class="tblDescr"><p>Information about other licenses used for Qt components and third-party code.</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="opensourcelicense.html">Open Source Licensing of Qt</a></p></td><td class="tblDescr"><p>Information about open source licensing of Qt.</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="trademarks.html">Trademarks</a></p></td><td class="tblDescr"><p>Information about trademarks owned by Digia and other organisations.</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qtmain.html">The qtmain Library</a></p></td><td class="tblDescr"><p>Describes the use and license of the qtmain helper library.</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qt-mac-cocoa-licensing.html">Contributions to the Cocoa Platform Plugin Files</a></p></td><td class="tblDescr"><p>License information for contributions by Apple, Inc. to specific parts of the Qt for Mac OS X Cocoa port.</p></td></tr>
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