Hi,

I find that .png format is way better for line drawings.
Yes! Remarkably small file sizes and surprising clarity at the other end.
I use that 90% of the time and it renders nicely on almost any PC.

png is a bitmap format, and never as good as a vector format if you have a
vector grafic. The pitty is that word isn't able to handle vector graphics
in a useful way :-( Even Powerpoint can't do this in a clean way.

Marte