What is “unpaper” Package?

Post-processing for scanned/photocopied books
For more details: https://www.flameeyes.eu/projects/unpaper

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install unpaper.

  brew install unpaper

Now, use unpaper!