Hello,
I have a PNG file with some transparent areas.
I used QGIS to georeference the file using the latlon/WGS84 projection settings.
Within this process, a world file (*.wld) and a point file where created.

Now, I'd like to reproject this image into another projection.

How do I have run gadlwarp that:
* the transparen regions in the PNG are being maintained tranparent and
* a new word file is written which corresponds to the new projection settings?

I tried to run the program with "-worldfile=yes" but no new worlfile was 
written.

Thanks in advance,
Timmie

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