Font typefaces
Introduction
By default, LaTeX typesets documents using the \(\text{Computer Modern}\) typeface family but you can use LaTeX packages to use different fonts according to your needs or preferences.
Changing the default document fonts
For example, by adding \usepackage{tgbonum} to the document preamble, LaTeX will use the TEX Gyre Bonum font family to typeset your document:
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{tgbonum}
\begin{document}
This document is a sample document to test font 
families and font typefaces.
This text uses a different font typeface
\end{document}
The following image shows the output produced by the example above:
 
Changing default font typeface
The font can also be changed for a specific element in the document.
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{tgbonum}
\begin{document}
This document is a sample document to 
test font families and font typefaces.
{\fontfamily{qcr}\selectfont
This text uses a different font typeface
}
\end{document}
The following image shows the output produced by the example above:
 
The command \fontfamily{qcr}\selectfont will set the TeX gyre cursor font typeface, whose fontcode is qcr, for the text inside the braces. A lot more LaTeX font typefaces are available, see the reference guide.
The popular LaTeX font typefaces are originated from four families:
- Computer Modern (default in standard LaTeX classes): CM Roman, CM Sans Serif, CM Typewriter
- Latin Modern: LM Roman, LM Sans Serif, LM Typewriter, LM Dunhill
- Post Script Fonts: Times, Utopia/Fourier, Palatino, Bookman, Helvetica, Courier
- TeX Gyre
Reference guide
Roman, Sans Serif and Typewriter typefaces
| Font | "font package name" | "font code" | Example | 
|---|---|---|---|
| Computer Modern Roman | cmr |   | |
| Latin Modern Roman | lmodern | lmr |   | 
| Latin Modern Dunhill | lmodern | lmdh |   | 
| TeX Gyre Termes | tgtermes | qtm |   | 
| TeX Gyre Pagella | tgpagella | qpl |   | 
| TeX Gyre Bonum | tgbonum | qbk |   | 
| TeX Gyre Schola | tgschola | qcs |   | 
| Times | mathptmx | ptm |   | 
| Utopia / Fourier | utopia/fourier | put |   | 
| Palatino | palatino | ppl |   | 
| Bookman | bookman | pbk |   | 
| Charter | charter | bch |   | 
| Computer Modern Sans Serif | cmss |   | |
| Latin Modern Sans Serif | lmodern | lmss |   | 
| TeX Gyre Adventor | tgadventor | qag |   | 
| TeX Gyre Heros | tgheros | qhv |   | 
| Helvetica | helvet | phv |   | 
| Computer Modern Typewriter | cmtt |   | |
| Latin Modern Sans Typewriter | lmodern | lmtt |   | 
| TeX Gyre Cursor | tgcursor | qcr |   | 
| Courier | courier | pcr |   | 
See also The LaTeX Font Catalogue, though note that not all fonts listed in the catalogue are distributed with a license that allows them to be distributed as part of TeX Live, and therefore not all those fonts are available on Overleaf.
Further reading
For more information see: