;;latex extra package - additional goodies.
(add-hook 'LaTeX-mode-hook #'latex-extra-mode)
(setq latex-run-command "pdflatex")

;;use pdftools to preview
(pdf-tools-install) ;; start server

 (setq TeX-view-program-selection '((output-pdf "PDF Tools"))
 TeX-view-program-list '(("PDF Tools" TeX-pdf-tools-sync-view))
    TeX-source-correlate-start-server t) ;; not sure if last line is neccessary

;; to have the buffer refresh after compilation
 (add-hook 'TeX-after-compilation-finished-functions
        #'TeX-revert-document-buffer)