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Firefox printing transparency

Posted: Sat Jan 20, 2007 7:32 pm
by Ambush Commander
It appears that Firefox does not support the printing of transparent elements. However, I've run into trouble where a PNG image, with black text over a transparent background, prints out black because that's what Firefox picks to fill in for the transparent pixels.

Does anyone know how to reliably convert images to a format where their background will print white if transparency is not supported?

Posted: Sat Jan 20, 2007 8:29 pm
by feyd
I haven't had an issue where fully transparent pixels printed in PNG images that I'm aware of. Maybe it's a quantizing (of the transparency) effect?

Posted: Sat Jan 20, 2007 8:32 pm
by Ambush Commander
Seems unlikely.

Anyway, if you want to see this effect in action, try printing this image (use PDF printer or something to save ink):

https://bugzilla.mozilla.org/attachment.cgi?id=112972

Posted: Wed Jan 24, 2007 6:15 pm
by Ambush Commander
Anyone know? :-( It's really bugging me.

Posted: Wed Jan 24, 2007 6:30 pm
by AKA Panama Jack
I could be nasty and say something about using Opera. ;) I just tried it with Opera and it printed just fine. Also printed out a page that used PNG overlays with transparencies and the images were printed through the transparent areas of the PNG.

So if you need that ability you could try using Opera 9.10.

Posted: Wed Jan 24, 2007 6:33 pm
by Ambush Commander
Hmm... I'll keep that in mind when I print out things. What I'd much rather do, however, is figure out how to reliably get these PNGs to work through some background color setting or something.