What's the best free PDF scanner app for Android? Cam Scanner is not a contender, because the free version puts watermarks on the scans. Tiny Scanner is disqualified because the free version only allowed me to make four (4) scans before locking me out with a screen telling me to buy the paid version -- and it wouldn't allow me to save those four scans to Dropbox.
Is there a good one -- that's free?
