[GH-ISSUE #334] Transparency in PNG image turns black, when setting output to JPG #755

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opened 2026-03-15 15:18:02 +03:00 by kerem · 1 comment

kerem commented 2026-03-15 15:18:02 +03:00

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Originally created by @jeroenbach on GitHub (May 24, 2022).
Original GitHub issue: https://github.com/flyimg/flyimg/issues/334

We're using PNG images with transparent backgrounds, but in some cases we want the transparent background to become white. When changing the output to JPG the transparency is removed, but it becomes black, even when setting the background to white.

I've added our used PNG here:

And then when I change the output to JPG (and for the example rotated the image 45 degrees), I get this picture:

Here you see the transparency is black and then the background behind the black is white (because I rotated the image)

Originally created by @jeroenbach on GitHub (May 24, 2022). Original GitHub issue: https://github.com/flyimg/flyimg/issues/334 We're using PNG images with transparent backgrounds, but in some cases we want the transparent background to become white. When changing the output to JPG the transparency is removed, but it becomes black, even when setting the background to white. I've added our used PNG here:  And then when I change the output to JPG (and for the example rotated the image 45 degrees), I get this picture:  Here you see the transparency is black and then the background behind the black is white (because I rotated the image)

kerem 2026-03-15 15:18:02 +03:00

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kerem commented 2026-03-15 15:18:18 +03:00

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@sadok-f commented on GitHub (May 24, 2022):

Thank you @jeroenbach for reporting this issue!
Please update your repo to the latest version, it should be fixed!

<!-- gh-comment-id:1135785525 --> @sadok-f commented on GitHub (May 24, 2022): Thank you @jeroenbach for reporting this issue! Please update your repo to the latest version, it should be fixed!

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