[wp-trac] [WordPress Trac] #45982: PDF thumbnails have a default black background

[WordPress Trac]

#45982: PDF thumbnails have a default black background
--------------------------+------------------------------
 Reporter:  nebrekab      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Media         |     Version:  5.0.3
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by joostdekeijzer):

 With my patch (see comment above) and below code my pdf's are without
 black backgrounds:

 {{{#!php
 <?php
     add_action( 'imagick_load_after_read', function( $image, $filename,
 $file_extension ) {
       if ( 'pdf' === $file_extension ) {
         $image->setImageAlphaChannel( Imagick::ALPHACHANNEL_REMOVE );
       }
     }, 10, 3 );

 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/45982#comment:8>
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