mathiasbynens/dotfiles — pull request #101 by oschrenk (2012-07-31 14:33:42+00:00)
Title: .aliases Add `pdf-concat` alias that merges pdf files

Credit goes to Fritz Stelluto and his article on his blog
http://blog.gotofritz.net/howto/joining-pdf-files-in-os-x-from-the-command-line/