You can create an html page which will load the PDF file inside a DIV tag.

Example shown below:

<html>
<body>

<div id="awmobject1" style="position:relative">
<iframe src="file.pdf" width=100% height=100%></iframe>
</div>

AllWebMenus linking code section here.....

</body>
</html>

Finally add the following values in the <Javascript Command on Appear> and <Javascript Command on Disappear>properties:

awmhidediv();
awmshowdiv();