I'm more than a little confused. My first thought was that you wanted the size of the file in bytes, but the following dicussion doesn't bear that out. Perhaps you could mention what sort of "measure it" you're refering to: inches, pixels, %of screen width, ... Some of the monks might be able to derive a better solution if you could breifly say why this is a need and where you want this info: for your eyes only, part of the HTML page, info with which to better render the page, etc.