PDF creator would work well for this. You can also scan your sheet music!
http://sourceforge.net/projects/pdfcreator/ PDF split and merge for creating digital books if desired.
http://www.pdfsam.org/?page_id=32 PDF editor if you want to edit. Haven't used this one yet, but looks good.
http://download.cnet.com/PDFill-PDF-Editor/3000-6675_4-10295757.html BTW, there'll all free programs. I use these for my laptop fake book and lead sheets.
Maybe I'll scan my important papers. Hope you have a fast scanner and software, however

Scott