Created by: Ethan Clevenger / Sterner Stuff Design
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.
From Sterner Stuff Design.
Tests:
* ImageMagick
* Imagick PECL Extension
* GhostScript
* Your WordPress Version