# Change line spacing inside the document

This is my code

\documentclass[12pt,a4paper]{book}
\renewcommand{\baselinestretch}{1.5}
\begin{document}
\include{Chapter1}
\end{document}


I would change the line spacing (1.5 --> 1.0) of a page inside the document and not the entire document and the size of the words, how can I do please?

• after using your code my chapters start being displayed on the left side (which is odd and wrong) - how can I make latex display them on the right (also known as the right) side again? I'm using the {book} class. Nov 14, 2013 at 19:19

You can use \setstretch{}. If you want to only affect a certain content you can use it with a group.

You can also apply any size changing switches such as \small or \tiny inside the {} group as well.

## Code

\documentclass[12pt,a4paper]{book}
\usepackage{xcolor}
\usepackage{lipsum}
\usepackage{setspace}

\renewcommand{\baselinestretch}{1.5}

\begin{document}
\lipsum[1]
{\setstretch{1.0}\color{blue}
\lipsum[2]
}
\lipsum[3]
\end{document}

• Just remember to end the paragraph before the final } (\lipsum adds a \par at its end). Using \linespread{1.5} (or some command of setspace) is better than redefining \baselinestretch. Nov 22, 2012 at 21:47
• @Peter Thank you so much :) Please i have another question: i have used \documentclass[12pt,a4paper]{book} and i'd like to change the size 12 to 10 of one paragraph inside the document, Have you an idea please ? Dec 21, 2012 at 13:25
• @researcher: You could try using the answers from LaTeX — specify font point size? and keep the change to be within a group (either inside a brace group {}, or within \begingroup, \endgroup pair. If that does not help you achieve the desired results you should post a separate question. Also, please note that you should use the full username with the @ syntax. I was only notified of this as it was a comment to an answer of mine. Dec 21, 2012 at 19:01
• i set \fontsize{10} just before the text ? Dec 21, 2012 at 19:19
• @researcher: fontsize has two parameters, not one. Dec 21, 2012 at 19:20

Alternatively, the following solution is a bit cleaner:

\documentclass[12pt,a4paper]{book}
\usepackage{lipsum}
\usepackage{setspace}

\begin{document}

\onehalfspacing % Set line spacing to 1.5

\lipsum[1]

\singlespacing % Reset line spacing to 1 from here on
\lipsum[2]
\onehalfspacing % Reset line spacing to 1.5 from here on

\lipsum[3]
\end{document}


For other values, you can use e.g. \setstretch{1.125} instead of \singlespacing and \onehalfspacing.

The advantage of this method is that you don't need a closing statement, such as end{} or a curly bracket.

• It looks like this also works (on Overleaf, at least) without adding the package setspace. Jan 7 at 21:23

# Other values

Other line spacing values that lie in between onehalf, single and double can also be achieved with:

\usepackage{setspace}

\begin{spacing}{1.125}
…
\end{spacing}