Title: Content Encoding Error
Last modified: December 29, 2025

---

# Content Encoding Error

 *  [Manas Mitra](https://wordpress.org/support/users/manas666/)
 * (@manas666)
 * [4 months, 4 weeks ago](https://wordpress.org/support/topic/content-encoding-error-26/)
 * Encountering following error message.
 *     ```wp-block-code
       Content Encoding ErrorThe page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.    Please contact the website owners to inform them of this problem.
       ```
   
 * It is a linux shared server. Not sure to ask the server support about which form
   of compression to be activated in the server. I have used the “PDF Thumbnails
   Support Test” plugin, which generated following report:
 *     ```wp-block-code
       PDF Thumbnails Support TestYour server has all the necessary software for PDF thumbnail generation! If it still isn't working, try deactivating all plugins.This will quickly tell your server has all the software installed to take advantage of WordPress 4.7's built-in PDF thumbnail generation. Some plugins may shim the functionality in other ways. This test only concerns the native WordPress functionality.ImageMagick: 		InstalledImagick: 		InstalledGhostscript: 		InstalledWordPress >= 4.7: 	Installed 
       ```
   
 * Best regards.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcontent-encoding-error-26%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [kubiq](https://wordpress.org/support/users/kubiq/)
 * (@kubiq)
 * [4 months, 2 weeks ago](https://wordpress.org/support/topic/content-encoding-error-26/#post-18782568)
 * Hello,
 * can you please try some another PDF file?
 * Some example one like [https://pdfobject.com/pdf/sample.pdf](https://pdfobject.com/pdf/sample.pdf)
 * Because it can be a problem with that specific PDF file only, imho…

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 2 participants
 * Last reply from: [kubiq](https://wordpress.org/support/users/kubiq/)
 * Last activity: [4 months, 2 weeks ago](https://wordpress.org/support/topic/content-encoding-error-26/#post-18782568)
 * Status: not resolved