Transparent files are printed with black background

[shaggy]

I use ubuntu breezy and firefox to print a website. The website contains transparent png and gif files.
The print preview shows the site correctly, but when i print this on my epson 875dc, those transparent graphics are printed with black background instead of the underlaying graphic.

regards, Sven

[Mark Florian (markrian)]

I'm not sure if this is the same bug, but anyway. I think this is a problem with gnome-print instead of firefox, given my problem.

I have a PDF file that has a graphic which I assume (but don't know for certain) has transparent areas. It's a graph, in fact. If opened and printed through Evince, the lines are printed as white and the rest pure solid black. The image is also sheared horizontally.

If I use pdf2ps on the PDF and open the resulting .ps file in Evince and print it, the problem is resolved.

I can't provide the PDF for copyright reasons, but I'll keep my eyes peeled for one that exhibits this behaviour that I can upload.

This also appears upstream, but attributed (incorrectly, again) to Gnumeric: http://bugzilla.gnome.org/show_bug.cgi?id=324515

[Mark Florian (markrian)]

gnome-print problem, not firefox.

[sam tygier (samtygier)]

if this is still occuring, can either of you post a website or pdf where this happens?

[shaggy (slimshaggy)]

example that gets printed out wrong:
http://www.msc-dorsten.de/test.html

preview was okay, result not
I'll attach the preview screenshot and a scann of the printed paper.

[Ian Jackson (ijackson)]

This is nothing to do with gnome-print. If I ask mozilla to print that image to a file, I get a ps file which mishandles the semitransparent png used in the web page.

This has been reported upstream; I'm attaching the upstream bug to this report. We're unlikely to do anything about this specifically for Ubuntu; it looks like heavyweight changes.

If there are problems with other programs when printing this file separate reports should be filed.