(PHP 4 >= 4.0.7, PHP 5, PHP 7) Give the bounding box of a text using fonts via freetype2

(PHP 4, PHP 5, PHP 7) Give the bounding box of a text using TrueType fonts

(PHP 4, PHP 5, PHP 7) Draw a string horizontally

(PHP 5 >= 5.5.0, PHP 7) Set the interpolation method

(PHP 4, PHP 5, PHP 7) Draw a filled rectangle

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

(PHP 5 >= 5.5.0, PHP 7) Crop an image automatically using one of the available modes

(PHP 4, PHP 5, PHP 7) Flood fill to specific color

(PHP 4, PHP 5, PHP 7) Draw a rectangle bool imagerectangle

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Output image to browser or file