php5-gd from devel:languages:php:php53 project
Select Your Operating System
Add repository and install manually
For openSUSE 13.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:php:php53/openSUSE_13.1/devel:languages:php:php53.repo zypper refresh zypper install php5-gd