What is “pdfcrack” Package?

PDF files password cracker
For more details: https://pdfcrack.sourceforge.io/

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 pdfcrack.

  brew install pdfcrack

Now, use pdfcrack!