[wp-trac] [WordPress Trac] #31050: Better PDF Upload Management

[WordPress Trac]

#31050: Better PDF Upload Management
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 Reporter:  celloexpressions                     |       Owner:
     Type:  feature request                      |  markoheijnen
 Priority:  normal                               |      Status:  assigned
Component:  Media                                |   Milestone:  4.5
 Severity:  normal                               |     Version:
 Keywords:  has-patch dev-feedback needs-unit-   |  Resolution:
  tests needs-testing                            |     Focuses:  ui
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Comment (by azaozz):

 Been thinking about this. To work it requires ImageMagick and Postscript
 on the server. There are some settings that we can pass through imagick to
 ps to try to get better quality previews.

 There is a difference between setting album art for audio, poster image
 for video and preview image for PDF.
 - Album art can be added separately, it should be a separate image
 attachment.
 - Video posters are usually generated automatically but would be good to
 support adding them manually, to match audio/album art.
 - PDF previews are always generated automatically. There is no need for
 separate image attachments.

 Thinking that it's better to set another meta "key" for preview images in
 the attachment meta, perhaps `preview_image`. Then keep the image details
 in there. That way we won't mix non-image mime types with image meta.

 The structure of the `preview_image` array can also be better than the
 existing image meta. For example we can store the sub-dirs separately and
 have all sizes in one array, etc.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31050#comment:33>
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