PDF Embed does not work??

Hi all,

for website http://www.schoonheidsspecialiste-astriddejong.nl/nieuwbrief I try to add a pdf file. Unfortunately it does not work.....

{pdf=http://schoonheidsspecialiste-astriddejong.nl/web/images/nieuwsbrief.pdf|500|800}

Joomla: 2.5.27

Can someone help me?

Grz.
Reg