Creating an image from a URL

[wisewood]

I have a function in place at the moment on my intranet system which displays the URL of the page currently being viewed by an intranet user. This is quite useful as you can look at the same content they are...

However, I would ideally like to be able to view a scaled down version of that page, like a thumbnail... I know you can create an image on the fly with GD, but is there a way to take the URL and convert its contents into an image?

I've been looking into it and just can't think of a way to go about it.