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"FPDF error: Alpha channel not supported:" when i click to download pdf invoice

Posted: August 14, 2012 at 8:24 am

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Kevin Doherty

August 14, 2012 at 8:24 am

While doing some testing and seeing the “download pdf invoice” in a confirmation email, i click the link but then i get taken to a page with this error “FPDF error: Alpha channel not supported: http://www.domain.com/wp-content/themes/usc/images/logo.png”

does this just mean i can’t use png’s as the main logo in general settings?


Kevin Doherty

August 14, 2012 at 8:39 am

I Updated the logo in the general settings to a jpg but it seems the system is still using the old path to the png for some reason (unless i set this somewhere else and forgot?). I ended up just manually changing the path in the options table in the DB and this resolved the error/issue.


mcote

August 15, 2012 at 6:07 pm

Kevin, from what I understand, are you saying that the .png images don’t work but that the .jpg do work?


Kevin Doherty

August 16, 2012 at 6:54 am

That’s correct, atleast that fixed the error/issue for me. Soon as I switched to a jpg with a white BG (bg color shouldn’t matter), I no longer received the error about the .png transparency


Josh

  • Support Staff

August 16, 2012 at 10:50 am

A png image might work, it would need to be flattened to not include the alpha layer.

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