[cl-gd-devel] PNG compression

[Andrei Stebakov]

On the site http://www.libgd.org/GdHistory they say:
That "the PNG compression level can now be specified when writing PNG
images. See the new gdImagePngEx, gdImagePngEx, gdImagePngCtxEx, and
gdImagePngPtrEx functions.".
This feature starts from version 2.0.12.
I have 2.0.35, so yes, libgd should support it.

Thank you,
Andrew

On Wed, Oct 1, 2008 at 6:53 PM, Hans Hübner <hans at huebner.org> wrote:

> 2008/10/1 Andrei Stebakov <lispercat at gmail.com>:
> > I was experimenting with write-png-to-stream trying :compression-level
> from
> > -1 to 9 but it doesn't change the size of the image.
> > For jpeg quality level works though.
> > What can I check for PNG compression to work?
>
> Are you sure that libgd supports compressing PNGs?  If so, it may be a
> fixable API problem.  Please verify that libgd itself supports
> compression, then let us know.
>
> Thanks,
> Hans
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