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Bug 530933 - Support for semi-transparent PNG8 (RGBA-palette mode)
Support for semi-transparent PNG8 (RGBA-palette mode)
Status: RESOLVED DUPLICATE of bug 86627
Product: GIMP
Classification: Other
Component: General
2.4.x
Other All
: Normal enhancement
: ---
Assigned To: GIMP Bugs
GIMP Bugs
Depends on:
Blocks:
 
 
Reported: 2008-05-01 19:48 UTC by Florent V.
Modified: 2008-10-30 20:12 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Florent V. 2008-05-01 19:48:23 UTC 
The PNG format allows for translucent colors (i.e. colors with partial transparency information) even for indexed PNG8 images. This is called RGBA-palette mode I think.

The only tools out there that seem able to create such PNG8 images are Adobe's Fireworks and a freeware icon editor for Windows called Pixelformer (though I couldn't confirm this for Pixelformer). Sadly there is no support for that kind of colour indexing in The GIMP. Hence this feature request.

More information:
http://www.sitepoint.com/blogs/2007/09/18/png8-the-clear-winner/
http://www.libpng.org/pub/png/pngaped.html (see the part about FireWorks)
http://www.w3.org/TR/PNG/#4Concepts.Indexing
Comment 1 Martin Nordholts 2008-05-01 19:59:51 UTC 
Thanks for the bug report!

This is a duplicate though:

*** This bug has been marked as a duplicate of 86627 ***