PDF is the way to go. There is so many free programs available that you can do about anything you want. Also there is a lot of PDF format music floating around already. So this is pretty much the standard.

The way I do it if it's already in PDF format is to use the camera tool. I just put the box around the music doing away with any unneeded margins. I then put it in Microsoft Publisher and size it to the blank page. Then I stretch it down about an inch's worth and save it as a pdf.

For scanning your own I just scan it as it is at 300 dpi, go to print it as a pdf where I can make it small enough to fit the blank page and crop it and streatch it like I mentioned in the above paragraph.

I am using my laptop on it's side and use a 2 button footswitch for turning pages.

This works pretty slick and I'm very pleased with the results.

Scott
http://ScottLMusic.com