Superimpose Images with PHP

Question

I am searching for a way to overlay an image on an existing image.

e.g:

+

Answer 1

You can do this using GD library. There is function to "merge" images called imagecopymerge.

Here is a very simple example how to merge images:

<?php
header('Content-Type: image/jpeg');

$bg = imagecreatefromjpeg('background.jpg');
$img = imagecreatefromjpeg('image.jpg');

imagecopymerge($bg, $img, 0, 0, 0, 0, imagesx($bg), imagesy($bg), 75);

imagejpeg($bg, null, 100);
?>