Document Viewer PDF Thumbnails - Install ImageMagick & Ghostscript

bitcoin 4 yrs

To enable PDF thumbnails within the document viewer plugin, some additional server software is required.

Note: The following should be run as the root SSH user.

RedHat/CentOS and Derivatives:
yum install ghostscript
yum install ImageMagick ImageMagick-devel
yum install gcc php-devel php-pear
pecl install imagick

Debian/Ubuntu:
sudo apt-get install ghostscript
sudo apt-get install imagemagick
sudo apt-get install php-imagick

IMPORTANT: After completing the steps above you may need to add the following to the end of your php.ini file:

extension=imagick.so

After all the above, ensure you've restarted Apache, PHP-FPM and/or Nginx.