Merge images / add logo

Hi there,
I was wondering what's the quickest way to put a (transp-PNG)
over a picture?

I have a code, but i guess it's sloppy. And it's slow.
(Code below this message)

Could anyone help me out on this?

Thanks

Greetings Frizzle.

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$img_id = substr( '0000000000'.$_GET['id'], -10, 10);

$info = getimagesize($img_id.".jpg");

$photo = imagecreatetruecolor($info[0], $info[1]);

$pic = imagecreatefromjpeg($img_id.".jpg");
imagecopy($photo, $pic, 0, 0, 0, 0, $info[0], $info[1]);

$logo = imagecreatefrompng("photo_logo.png");
imagecopy($photo, $logo, 20, 30, 0, 0, 128, 20);
header("Content-type: image/jpeg");
imagejpeg($photo , "", 90);
imagedestroy($photo);

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