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I need to convert a GeoTIFF image to PNG format with "NoData" pixels in the original image being transparent in the output.

Is there any tool particularly in ArcGIS ArcToolbox or GDAL for this purpose?

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you can achieve it with this way:

first run this code:

for %i in (*.tif) do gdal_translate -of GTIFF -a_nodata 0 %i %~new_ndata.tif


for %i in (*.tif) do gdal_translate -of PNG -scale -co worldfile=yes %i %~cnvt.png

i hope it helps you...

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