[gdal-dev] Show isBigTIFF in image metadata

[Kurt Schwehr]

Jukka,

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.

Thanks,
-Kurt

On Thu, Nov 2, 2023 at 2:49 PM Even Rouault via gdal-dev <
gdal-dev at lists.osgeo.org> wrote:

> Jukka,
>
>
> 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.
>
> tiffdump does:
>
> $ tiffdump byte.tif
> byte.tif:
> Magic: 0x4949 <little-endian> Version: 0x2a <ClassicTIFF>
>
> vs
>
> $ tiffdump bigtiff.tif
> bigtiff.tif:
> Magic: 0x4949 <little-endian> Version: 0x2b <BigTIFF>
>
> Even
>
> -- http://www.spatialys.com
> My software is free, but my time generally not.
>
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> gdal-dev at lists.osgeo.org
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>
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