So many choices! These days when I'm chasing the highest quality gtaphics for sheet music I create a PDF file - really easy using PDF595 (and free).

To create a GIF or PNG (the best formats for music apart from PDF) you can simply copy the image from the PDF using Acrobar Reader, paste to your favourite graphics editor and save in whatever format you desire. I would NOT recommend JPG for music. The tip here is to magnify the PDF in Acrobat Reader to get the best combination of quality vs size - the greater the zoom size the bigger and better quality you get.

There's a whole thread on this this subject going back maybe 9 months.

PDF's rule!

Regards, John