# How to choose a specific weight from a font family using fontspec and XeLaTeX

I have installed an open-type font on my OS and would like to use in a LaTeX document using XeLaTeX.

It works fine, but when I define my font family like this:

\ifxetex
\newfontfamily{\neosans}{NeoSans}
\else
\fi


When I then use \selectfont\neosansit just selects the Regular version of that font. However, I would like to use the Light version!

Even if I write \newfontfamily{\neosans}{NeoSans-Light} or \newfontfamily{\neosans}{NeoSans Light} it still chooses the Regular version.

The specifications of the font I would like to use looks as follows (in Danish, though):

## My question is

How do use the Light version of the font?

-

I don't have NeoSans, but experimented with another font:

\documentclass{article}
\usepackage{fontspec}
\newfontfamily{\os}{Open Sans}
\newfontfamily{\osl}[UprightFont={* Light}]{Open Sans}
\begin{document}
{Normal: \os Open Sans\par}
{Light: \osl Open Sans Light\par}
\end{document}


You see that the second line indeed chooses the light version.

Notice that \selectfont is not needed (and does nothing).

In your case you probably want to also change the italic and bold version:

\newfontfamily{\neosans}
[Ligatures=TeX, % recommended
UprightFont={* Light},
ItalicFont={* Light Italic},
BoldFont={* Medium},
BoldItalicFont={* Medium Italic}]
{NeoSans}


If you want that NeoSans is used as the standard sans serif font, then instead of \newfontfamily{\neosans} write \setsansfont:

\setsansfont
[Ligatures=TeX, % recommended
UprightFont={* Light},
ItalicFont={* Light Italic},
BoldFont={* Medium},
BoldItalicFont={* Medium Italic}]
{NeoSans}

-
@Zappel This is another question; the second argument specifies the distance between baselines, but TeX won't overlap lines anyway. –  egreg Jul 8 '12 at 15:59
@Zappel New questions should not go in comments. This has nothing to do with fontspec. Please, make a new question. –  egreg Jul 8 '12 at 16:13