[KarenH]

Who needs software to measure a sig?

It seems to me that you could take a piece of paper, hold it up to the ruler on your screen, make pencil marks on the edge of the paper corresponding to the ends of the ruler, then hold the paper up to your sig to see if it fits within the marks. The only cautions would be to have the image in the middle of your monitor to avoid optical distortion, and to be careful not to mark the monitor with your pencil or fingers.

This technique would be particularly useful if you don't have a ruler handy for measuring things in the traditional way. Of course, it won't be accurate if you're trying to push the limit at exactly 200 pixels.