One option you can do is to have it professionally done. There's one
company I know of that will scan your aircraft and engine logbooks,
with searchable index and burn it on a cd. I don't know how much they
charge for the service but there's a demo of what the end result will
look like. I played around with it some time ago. The only downside is
that you won't have the portability as you would a PDF (although I
think you have access to the scanned images as .TIFs). Anyway here's
the link:

http://www.airlogimaging.com/index.html