(PHP 4 >= 4.0.1, PHP 5, PHP 7) Get the index of the color which has the hue, white and blackness

(PHP 4, PHP 5, PHP 7) Copy and resize part of an image

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Rotate an image with a given angle

(PHP 4 >= 4.0.5, PHP 5, PHP 7) Convert JPEG image file to WBMP image file

(PHP 4, PHP 5, PHP 7) Get font height int imagefontheight

(PHP 4, PHP 5, PHP 7) Draw a character vertically

(PHP 5 >= 5.5.0, PHP 7) Output a WebP image to browser or file

(PHP 4 >= 4.0.7, PHP 5, PHP 7) Create a new image from a given part of GD2 file or URL

(PHP 4, PHP 5, PHP 7) Load a new font int imageloadfont

(PHP 5 >= 5.5.0, PHP 7) Crop an image using the given coordinates and size, x, y, width and height