pdf thumbnail imagemagick php not working -

i using imagemagick , ghostscript in windows pc running php5 in apache.

i tried

<?php $im = new imagick('test.pdf[0]'); $im->setimageformat( "jpg" ); header( "content-type: image/jpeg" ); echo $im; ?>

and found not working.

my php info file shows imagick working...

enter image description here

i trying generate thumbnail without saving in server hard drive...

you're outputting imagick object, not image you're dealing with. output .jpg, you'd need do

echo $im->getimageblob();

Expalin