Help on hiding the url from the browser viewsource

Does any one know how to hide the url from the <object><embed src="">?

For Instance:
<embedsrc="http://yoursite.com/the.pdf"width="500"height="375">
 I would like to hide the url from the browser viewsource to avoid user to copy and paste on browser address bar

Instead
<embedsrc="anything other than the real path and file name"width="500"height="375">

Thanks