Whether you consider this convenient, or fast enough, you can use javascript to do the job. You can either use embed as I will do in the following sample, or you can use an iframe to google document viewer.
If you have no other solution, and you need it, try something of this nature ... load your pdfs on a hidden reports page. Identify the address the pdfs are being stored and use a variation on the following script:
<script type="text/javascript">
function popUp()
{