+** pdf-tools
+#+BEGIN_SRC bash
+ brew install poppler
+#+END_SRC
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package pdf-tools
+ :ensure t
+ :init
+ ;; run to complete the installation
+ (pdf-tools-install)
+ :config
+ (add-to-list 'auto-mode-alist '("\.pdf$" . pdf-view-mode))
+ (add-hook 'pdf-outline-buffer-mode-hook #'sd/pdf-outline-map))
+
+ (defun sd/pdf-outline-map ()
+ "My keybindings in pdf-outline-map"
+ (interactive)
+ (define-key pdf-outline-buffer-mode-map (kbd "C-o") nil)
+ (define-key pdf-outline-buffer-mode-map (kbd "i") 'outline-toggle-children)
+ (define-key pdf-outline-buffer-mode-map (kbd "j") 'next-line)
+ (define-key pdf-outline-buffer-mode-map (kbd "k") 'previous-line))
+#+END_SRC
+
+* Dired