Add watermark to animated GIF with imageMagick (PHP) -

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i need add watermark animated gif imagemagick .
have problem !

my code :

<?php $image = new imagick(); $image->readimage("orginal.gif");  $watermark = new imagick(); $watermark->readimage("watermark.png");  // how big images? $iwidth = $image->getimagewidth(); $iheight = $image->getimageheight(); $wwidth = $watermark->getimagewidth(); $wheight = $watermark->getimageheight();  if ($iheight < $wheight || $iwidth < $wwidth) { // resize watermark $watermark->scaleimage($iwidth, $iheight);  // new size $wwidth = $watermark->getimagewidth(); $wheight = $watermark->getimageheight(); }  // calculate position $x = ($iwidth - $wwidth) / 2; $y = ($iheight - $wheight) / 2;  $image->compositeimage($watermark, imagick::composite_over, $x, $y);  header("content-type: image/" . $image->getimageformat()); echo $image; ?>

original gif :
see original gif

output gif :
see output gif

my gif not animated after creating watermark !
how can fix ?

you have found code watermark image. animation need separate each frame, watermark , put together. check out: coalesce


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