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Invoice rendering: Remove transparency from logos (Z#23179391) (#4762)

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* Invoice rendering: Remove logos from transparency

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This commit is contained in:
Raphael Michel
2025-01-21 15:03:43 +01:00
committed by GitHub
parent 1635118772
commit 045edc7cec
2 changed files with 15 additions and 0 deletions
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9
src/pretix/base/invoice.py
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@@ -388,6 +388,15 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
except:
logger.exception("Can not resize image")
pass
try:
# Valid ZUGFeRD invoices must be compliant with PDF/A-3. pretix-zugferd ensures this by passing them
# through ghost script. Unfortunately, if the logo contains transparency, this will still fail.
# I was unable to figure out a way to fix this in GhostScript, so the easy fix is to remove the
# transparency, as our invoices always have a white background anyways.
ir.remove_transparency()
except:
logger.exception("Can not remove transparency from logo")
pass
canvas.drawImage(ir,
self.logo_left,
self.pagesize[1] - self.logo_height - self.logo_top,