[wp-trac] [WordPress Trac] #62900: PNG original image not affected by conversion filter

[WordPress Trac]

#62900: PNG original image not affected by conversion filter
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 Reporter:  pixlpirate                           |       Owner:
                                                 |  adamsilverstein
     Type:  defect (bug)                         |      Status:  reviewing
 Priority:  normal                               |   Milestone:  Awaiting
                                                 |  Review
Component:  Media                                |     Version:  6.7.1
 Severity:  normal                               |  Resolution:
 Keywords:  needs-patch dev-feedback needs-      |     Focuses:
  testing                                        |
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Comment (by pixlpirate):

 > I missed this in reading your original report
 No problem! 🙂

 I tested the following combinations, the problem occurs in all of them:
 - Size range between 270px to 4320px, square, landscape, portrait
 - 8-bit / 24-bit
 - With / Without alpha layer
 - With / Without interlacing

 I’m using PHP GD //(cf. site health attached)//, I can try to switch to
 ImageMagick if you need more tests.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62900#comment:4>
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