PHP's GD2 module is a graphics library that allows PHP to easily manipulate and manage images, including resizing images, recreating images, adding watermarks to images and so on. Drupal has a number of image features which require an image module to be installed with PHP. By default, GD2 is installed with WampServer; but it is important for us to confirm that it is enabled, and that we know where the setting is.
PHP's modules are enabled and disabled by clicking the WampServer logo in the system tray selecting PHP and then the PHP Extensions.
From here, we can enable or disable the GD2 extension.
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