if ($handle->uploaded) {

$handle->image_watermark = '../images/fca.png';
$handle->image_watermark_position = 'br';
$handle->image_watermark_position = 'br';

<?php
$shtamp = 'http://images.kz.prom.st/6667945_w200_h200_uz.png'; // rasm ustiga bosiladigan belgi uchun rasm manzili
$boshqa_saytdagi_rasm = 'http://www.eurasianet.org/sites/default/files/imagecache/galleria_fullscreen/090916-b_0.jpg'; // boshqa saytdan yuklab olinayotgan rasm manzili
 
$stamp = imagecreatefrompng($shtamp);
$url_rasm = imagecreatefromjpeg($boshqa_saytdagi_rasm);
 
// bosiladigan belgini boshqarish
$marge_right = 10;
$marge_bottom = 10;
$sx = imagesx($stamp);
$sy = imagesy($stamp);
imagecopy($url_rasm, $stamp, imagesx($url_rasm) - $sx - $marge_right, imagesy($url_rasm) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp));
 
// rasmni beli bosilgan holstini chiqarish
header('Content-type: image/png');
imagepng($url_rasm);
imagedestroy($url_rasm);
?>