PHP Image Manipulation

Why would you want to mess with images in code?

Store uploads photos – dynamically resized by system so consistent

Display Cropped Version as Profile Pic

Add text over images as watermark, create thumbnails

Create Image Files Create a blank canvas Draw: Lines Shapes Text Set colors Save it as image file

Step 1: Create a canvas

Allocate Colors RGB Values can be Integers (0-255) Or can be Hex values (stick 0x in front of value)

Draw, Save, & Clean Up Default background color is black

Save as Different File Types

Drawing Options

More Drawing Options Additional Functions: http://php.net/manual/en/book.image.php

Working With Existing Graphic

Get Width and Height of Pic

Create Thumbnail Version