Package php7-gd2: Information

The php7-gd2 includes a dynamic shared object (DSO) that adds
GD support to PHP. GD is a library that enables you to create PNG,
JPEG, XPM, and WBMP graphics. It is linked with freetype and t1lib so
you can use TrueType fonts. PHP is an HTML-embedded scripting language.
If you need GD support for PHP applications, you will need to install
this package in addition to the php package.