So far all the zoom of magnifying plugins I have found are for images and I need something that will work when hovered over an embedded object tag .pdf file. Any ideas?
Basically images can be rendered properly from the browser and can be "embedded" into a web page, while the PDF cannot be embedded directly into html, and that's why they cannot be zoomed.
You cannot see a PDF preview in a page. Well, it's possible, but not with pure JavaScript. You can embed the file in a web page using something like this: https://docs.google.com/viewer
here is an example: http://code.google.com/apis/books/docs/viewer/examples/book-animate.html
but I don't believe it's possible to achieve the effect you like.