Title: PDF Thumbnail Error
Last modified: August 2, 2017

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# PDF Thumbnail Error

 *  Resolved [connectisl](https://wordpress.org/support/users/connectisl/)
 * (@connectisl)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/)
 * Hi,
 * Our operations staff noticed error log messages that we have tracked down to 
   WordPress trying to generate thumbnails for PDFs that have been uploaded to Download
   Monitor. This happens when a user opens the Media Manager on a post and there
   is a PDF stored in Download Monitor. The thumbnail generation appears to be calling
   the PDF over the web and hitting the deny from all htaccess file.
 * Thanks
 * Mark

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/#post-9462553)
 * Hey Mark,
 * Are you facing this issue only when our plugin is active? If you upload something
   directly using the “Media” menu in WordPress admin, then do you find similar 
   error?
 *  Thread Starter [connectisl](https://wordpress.org/support/users/connectisl/)
 * (@connectisl)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/#post-9465923)
 * Hi Harish,
 * This problem only happens when your plugin is active and it only affects uploads
   that are in /wp-content/uploads/dlm_uploads/ where the .htaccess file with “deny
   from all” is.
 * Files uploaded to the Media Manager rather than Download Monitor are in directories
   that aren’t affected by the .htaccess file so they don’t get a similar error.
 * Thanks
 * Mark
 *  [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/#post-9528991)
 * Hey Mark,
 * I checked and can confirm that this could happen. Since the files are protected,
   WordPress won’t be able to create a thumbnail.
 * While there is no way around it, I have created an issue at [https://github.com/download-monitor/download-monitor/issues/420](https://github.com/download-monitor/download-monitor/issues/420)
   as a note to ourselves to see what we can do about it in future.
 *  Plugin Contributor [Barry Kooij](https://wordpress.org/support/users/barrykooij/)
 * (@barrykooij)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/#post-9563102)
 * Hey Mark,
 * I just fixed this issue in our development build. A fix will be included in the
   1.9.8 release.
 * Kind Regards,
 * Barry Kooij

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘PDF Thumbnail Error’ is closed to new replies.

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 * 4 replies
 * 3 participants
 * Last reply from: [Barry Kooij](https://wordpress.org/support/users/barrykooij/)
 * Last activity: [8 years, 8 months ago](https://wordpress.org/support/topic/pdf-thumbnail-error/#post-9563102)
 * Status: resolved