Available casks:
- pdftk: Works around mangling of permissions on
/usr/localby modifying post-install scripts of the associated package.
- pdftk pull request: Homebrew/homebrew-cask#11351
- pdftk cask issue: Homebrew/homebrew-cask#7707
- Installing PDFtk Server edittion on your Mac: https://gist.github.com/jvenator/9672772a631c117da151