save Grayscale PNG with gd

[email protected] (Dieter Guthmann) Mon, 12 Nov 2007 10:45:52 +0100

Newsgroups	php.gd.devel
Message-ID	<[email protected]>

Hello,

is it possible to save a GD-created image as grayscale-PNG-File?
Thanks in Advance.

Rgds.
Dieter Guthmann

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