[cl-gd-devel] PNG compression

[Hans Hübner]

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