(PHP 4 >= 4.0.6, PHP 5, PHP 7) Set the blending mode for an image

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

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

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

(PHP 4, PHP 5, PHP 7) Define a color as transparent

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail

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

(PHP 4, PHP 5, PHP 7) Draws a polygon bool imagepolygon

(PHP 4, PHP 5, PHP 7) Allocate a color for an image

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