I am trying to use Tufte-Latex class, but it seems that it is not possible to write in French even if I use \usepackage[frenchb]{babel}
. How could I do it? Thanks.
If the file is UTF-8 encoded, you needed, on old LaTeX Releases,
\usepackage[utf8]{inputenc}
this is unrelated to the document class in use.
In LaTeX Releases from 2018 on, UTF-8 is the default encoding.
\usepackage[utf8]{inputenc]
most likely – David Carlisle Jun 19 '16 at 21:24