[gdal-dev] GeoPDF and neatline

Even Rouault even.rouault at spatialys.com
Fri Nov 17 08:13:27 PST 2023


Hi,
>
> _My question :_
> Is there a way to gdal_translate / gdalwarp the PDF file without 
> EXPLICITLY extracting the neatline ?
No. Your above method is the nominal one.
>
> I tried to use the "*-oo NEATLINE=something*" option :
> gdal_translate -of GTiff -oo NEATLINE="POLYGON ((467455.095191925 
> 4427281.84826825,467455.105581267 4442204.97588751,479233.89727774 
> 4442204.58886474,479234.013428373 4427281.65662041,467455.095191925 
> 4427281.84826825)) Boulder_400010515_FSTopo.pdf 
> Boulder_400010515_FSTopo.pdf.tif

This won't work. As documented, this must be a name of a "Measure" PDF 
object. This is in the case of a PDF with multiple georeferenced areas 
(like US with an Alaska or Hawaai inset map). And by itself, this will 
not crop the raster, but just expose the pointed Measure as the NEATLINE 
metadata.

Even

-- 
http://www.spatialys.com
My software is free, but my time generally not.
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