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  <section id="libtiff-coverage-of-the-bigtiff-specification">
<h1>LibTIFF Coverage of the BigTIFF Specification<a class="headerlink" href="#libtiff-coverage-of-the-bigtiff-specification" title="Permalink to this heading">¶</a></h1>
<p>Since LibTIFF version 4.0.0, the BigTIFF format specification has been implemented within LibTIFF.
BigTIFF is a backward-compatible extension to the <a class="reference external" href="http://www.awaresystems.be/imaging/tiff.html">TIFF</a>
file format.</p>
<p>BigTIFF logically extends the original TIFF file format (referred to as 'ClassicTIFF' from now on).
The BigTIFF specification is the result of work by a variety of parties on the LibTIFF mailing list, including
the then current LibTIFF maintainers, Joris Van Damme and Adobe staff. The BigTIFF specification has not yet
been officially approved by the TIFF specification owner (Adobe), but implementation within LibTIFF
could accelerate that process.  For more information on the BigTIFF file format, we recommend AWare Systems'
<a class="reference external" href="http://www.awaresystems.be/imaging/tiff/bigtiff.html">BigTIFF page</a>.</p>
<p>BigTIFF is especially useful for people and vendors that are confronted with very large images, and
still seek to use an open, simple, and extendable format. This requirement is frequently encountered in the
geospatial field, but also concerns large format scanners, medical imaging and other fields.</p>
<p>The LibTiff BigTIFF support was made possible by four sponsors funding the project. The programming work was
primarily done by <a class="reference external" href="http://www.awaresystems.be/index.html">Joris Van Damme (AWare Systems)</a>.
The sponsors for the BigTIFF support work in LibTIFF, in alphabetical order:</p>
<table class="docutils align-default" id="id1">
<caption><span class="caption-text">Sponsors</span><a class="headerlink" href="#id1" title="Permalink to this table">¶</a></caption>
<colgroup>
<col style="width: 20.0%" />
<col style="width: 80.0%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><a class="reference internal image-reference" href="../_images/esri.png"><img alt="ESRI" src="../_images/esri.png" style="width: 100%;" /></a>
</td>
<td><p><a class="reference external" href="http://www.esri.com/">ESRI</a> has been giving customers around the world the power to
think and plan geographically since 1969.  As the leader in GIS, ESRI applies innovative technologies to help
organizations create, analyze, and visualize information for more informed decisions.  Running on more than
a million desktops and thousands of servers, ESRI applications are the foundation of the world's mapping and
spatial analysis infrastructure.</p></td>
</tr>
<tr class="row-even"><td><a class="reference internal image-reference" href="../_images/leica.png"><img alt="Leica Geosystems Geospatial Imaging" src="../_images/leica.png" style="width: 100%;" /></a>
</td>
<td><p><a class="reference external" href="http://gi.leica-geosystems.com/default.aspx">Leica Geosystems Geospatial Imaging</a> offers a
range of workflow solutions for photogrammetry, mapping, remote sensing, catalog management and exploitation
of geospatial imagery. Enterprise organizations use this imagery as the basis for generating information for
both education and decision making processes. Those who use Leica Geosystems products every day trust them
for their precision, seamless integration, interoperability and superior customer support.</p></td>
</tr>
<tr class="row-odd"><td><a class="reference internal image-reference" href="../_images/safe.png"><img alt="Safe Software" src="../_images/safe.png" style="width: 100%;" /></a>
</td>
<td><p><a class="reference external" href="http://www.safe.com/">Safe Software</a> is the maker of FME, a powerful spatial ETL (Extract,
Transform and Load) tool that enables true data interoperability. FME manages the translation,
transformation, integration and web-based distribution of geospatial data in 200 GIS, CAD, raster and
database formats. Safe Software's FME technology is also embedded in numerous market-leading GIS and
ETL applications.</p></td>
</tr>
<tr class="row-even"><td><a class="reference internal image-reference" href="../_images/weogeo.png"><img alt="WeoGeo" src="../_images/weogeo.png" style="width: 100%;" /></a>
</td>
<td><p><a class="reference external" href="http://www.weogeo.com/">WeoGeo</a> is a web-based data management resource for the geospatial
industry that allows the free market exchange of mapping related imagery products, featuring an innovative
solution that efficiently manages digital mapping files of any size. With an intuitive user interface
and the scalable power of Amazon Web Services (AWS), geospatial professionals can view, sort, search,
and share complex, high volume maps quickly and effectively.</p></td>
</tr>
</tbody>
</table>
</section>

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