Hello,

The Plesk Hosting software package is a commercial hosting automation software. It allows to setup set up new websites, email accounts, and DNS entries through a web-based interface.

The php gd package contains a dynamic shared object that will add support for using the gd graphics library to PHP. If users are using popular CMS software such as Wordpress, you need GD support.

Adding GD graphic libraries support to php is quite easy job w/o breaking Plesk software.

Red Hat Enterprise Linux

Type following two command as root user:
# up2date php-gd
# /etc/init.d/httpd restart

Cent OS or Fedora Core Linux

Type following two command as root user:
# yum install php-gd
# /etc/init.d/httpd restart

Verify that php gd support loaded

Type any one of the following command:
# php -m | less
# php -m | grep gd

Enjoy..