[Bug]: Alpha channel is not respected on graphics #19978

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gevorgter opened this issue May 29, 2025 · 0 comments

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core

gevorgter commented May 29, 2025

Attach (recommended) or Link to PDF file

The very first page has yellow bar but has a alpha channel that makes it semi transparent. But PDfjs shows solid yellow and text is not visible.

Web browser and its version

all

Operating system and its version

all

PDF.js version

all

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

No

Steps to reproduce the problem

Upload attached file to example
https://mozilla.github.io/pdf.js/web/viewer.html

What is the expected behavior?

Yellow bar should be semi transparent.

What went wrong?

Yellow bar should be semi transparent. See screenshots

vs

Link to a viewer

No response

Additional context

No response

timvandermeij added the core label

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