[mapserver-users] PNG Optimization

[Cédric MOULLET]

Hi,
We are using MapServer to generate tiles and the following ouptut format is
used:

OUTPUTFORMAT
 NAME "pnga"
 MIMETYPE "image/pnga"
 DRIVER "AGG/PNG"
 EXTENSION "png"
 IMAGEMODE "RGBA"
 TRANSPARENT TRUE
 FORMATOPTION "INTERLACE=OFF"
END

We observe that the size of the tiles can be reduced by a at least factor 2
if we use a tool like optipng.
Is it possible to configure MapServer in order to optimize the file output
(and for example use optipng)  ? Or do you see another way to optimize the
image (I'd like to do that on the MapServer side in order to avoid a
postprocessing) ?
Thanks in advance for any hints.
Cédric

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