<?php
/*
=============================================================
Script Name: watermark.php4
Verion: 1.0
Author: Ryan Doutt
Date: April 2007
Acknowledge: Brock Ferguson - See original article at http://www.sitepoint.com/article/watermark-images-php
which this script is based.
This is a PHP scripted, watermarking system for graphics files to be used with .htaccess on
an Apache web server. It should be called as follows from within your root .htaccess file:
RewriteEngine on
RewriteCond %{REQUEST_URI} uploads(.*) [NC]
RewriteRule ^(.*)$ http://www.yourdomain.com/path/to/watermark.php4?src=$1 [NC]
To see this script in action please point your favorite browser in the general direction of
one of the following images:
http://www.1800getryan.com/uploads/certaldo/P6180228.JPG
http://www.1800getryan.com/uploads/ireland/P8230023.JPG
http://www.1800getryan.com/uploads/broumov/P5240187.JPG
This script is available for use as freeware subject to the retention of the preceding
information and acknowledgements in any copy or modification that is made to this code.
=============================================================
*/
header('content-type: image/jpeg');
$watermark = imagecreatefrompng('watermark.png');
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
$image = imagecreatefromjpeg($_GET['src']);
$size = getimagesize($_GET['src']);
$dest_x = $size[0] - $watermark_width;
$dest_y = $size[1] - $watermark_height;
$white = imageColorAllocate ($watermark, 255, 255, 255);
imagecolortransparent($watermark,$white);
imagecopymerge($image, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, 100);
imagejpeg($image);
imagedestroy($image);
imagedestroy($watermark);
?>