- Bold text:
\textbf{}
- Italic text:
\textit{}
- Underlined text:
\underline{}
- Emphasized text:
\emph{}
\documentclass{article}
\begin{document}
\textbf{This is bold text.}
\textit{This is italic text.}
\underline{This is underlined text.}
\emph{This is emphasized text.}
\end{document}