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I am using ArcMap 10.8. I try to add a fourth band with my TIFF to extract it by mask and NOT have a black box arroud with NoData values. In the end I need a four band PNG with transparency layer. From the ArcMap documentation on Supported raster dataset file formats I got the information that ArcGIS can read, but not write a PNG with four bands.

I know that I could use other software to do the job (FME, QGIS), but I need an ArcGIS solution (Toolbox built with ModelBuilder). I need this PNG for a displaying in a browser.

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  • Browsers should know to make black pixels transparent even with 3 band png if black is marked as nodata. Does gdalinfo show this for your png file NoData Value=0?
    – user30184
    yesterday

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