What could be the potential reasons for the GD library not being recognized by PHP?

The GD library may not be recognized by PHP due to missing or incorrect configuration settings in the php.ini file. To solve this issue, you should ensure that the GD extension is enabled in the php.ini file and the correct path to the GD library is specified.

; Enable GD extension module
extension=gd

; Specify path to GD library
gd.jpeg_ignore_warning = 1