It seems, the problem only occurs in Firefox.
I tested Safari, the PDF-File is displayed correctly.
Hello I have got the same problem,here is the sourcecode of the site:
<object class="vanilla-pdf-embed" data="http://mypage.de/?wpfb_dl=61#page=1&view=FitH" type="application/pdf" width="100%" height="500em">
<p><a href="http://mypage.de/?wpfb_dl=61">Download the PDF file .</a></p>
</object>
Thank You & best regards
