<div dir="ltr">Jukka,<br><div><br></div><div>What's the exact use case for needing to know if a tiff is traditional or BigTIFF? Is there a key tool that doesn't understand BigTIFF? The only one I know of is Autodesk Civil3D.</div><div><br></div><div>Thanks,</div><div>-Kurt</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Nov 2, 2023 at 2:49 PM Even Rouault via gdal-dev <<a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
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Jukka,<span lang="EN-US"><u></u><u></u></span>
<blockquote type="cite">
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<p class="MsoNormal"><span lang="EN-US"><br>
Does it feel reasonable? I know that overviews may be
standard TIFFs while the main image is BigTIFF but maybe the
information from the header would be enough. Or have I
missed some existing tool? I thought that tiffinfo at least
would report TIFF/BigTIFF but it doesn’t.</span></p>
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</blockquote>
<p>tiffdump does:</p>
<p>$ tiffdump byte.tif<br>
byte.tif:<br>
Magic: 0x4949 <little-endian> Version: 0x2a
<ClassicTIFF><br>
</p>
<p>vs</p>
<p>$ tiffdump bigtiff.tif <br>
bigtiff.tif:<br>
Magic: 0x4949 <little-endian> Version: 0x2b <BigTIFF><br>
<br>
</p>
Even
<pre cols="72">--
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My software is free, but my time generally not.</pre>
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</blockquote></div>