[wp-trac] [WordPress Trac] #39216: PDFs with non-opaque alpha channels can result in previews with black backgrounds.

[WordPress Trac]

#39216: PDFs with non-opaque alpha channels can result in previews with black
backgrounds.
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 Reporter:  gitlost                              |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Awaiting
                                                 |  Review
Component:  Media                                |     Version:  4.7
 Severity:  normal                               |  Resolution:
 Keywords:  dev-feedback 2nd-opinion has-patch   |     Focuses:
  has-unit-tests                                 |
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Comment (by ceer):

 > Let me know if you think this approach is workable, and I will submit a
 patch.

 I've tested without success.
 Furthermore, I have this notice:

 Deprecated: Imagick::flattenImages method is deprecated and it's use
 should be avoided in /www/wp-includes/class-wp-image-editor-imagick.php on
 line 157

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Ticket URL: <https://core.trac.wordpress.org/ticket/39216#comment:10>
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