[Tickets #14833] Re: Error when communicating with the server with PDF Attachements

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Ticket URL: https://bugs.horde.org/ticket/14833
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  Ticket             | 14833
  Updated By         | build+horde at de-korte.org
  Summary            | Error when communicating with the server with PDF
                     | Attachements
  Queue              | IMP
  Version            | 6.2.22
  Type               | Bug
  State              | Not A Bug
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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build+horde at de-korte.org (2018-11-05 21:39) wrote:

And your version of ImageMagick is? Note that *reading* PDF files has  
been switched off for ImageMagick in many distributions lately, to  
deal with security issues with the underlying Ghostscript library.

Currently, it is adviseable to switch of generating thumbnails for PDF  
files by adding

     $mime_drivers['pdf']['thumbnails'] = false;

to your 'imp/config/mime_drivers.local.php' file.