How to force \paragraph to start on a new page

Question

If

\paragraph{abc}
text text text text text text text text text text ... text

is on the bottom of page \paragraph stays at the bottom while the content is moved to top of the next page. How to force \paragraph to also get moved to the top of next page instead of standing alone at the bottom of last page.

Answer 1

Please always post complete documents, especially in this case where the problem is in code you have not shown.

LaTeX already makes it an infinitely bad place to break after the heading, so if it does break there, something else on the page made the constraints infeasible, and all options were infinitely bad.

Consider

\documentclass{article}

\setlength\textheight{5cm}
\begin{document}

a\\b\\c\\d\\e\\f\\g\\h


\paragraph{abc}
text text text text text text text text text text ... text
text text text !!text text text text text text text ... text
text text text text text text text text text text ... text
text text text text text text text text text text ... text

\end{document}

If you push the text down 1 line:

\documentclass{article}

\setlength\textheight{5cm}
\begin{document}

a\\b\\c\\d\\e\\f\\g\\h\\i


\paragraph{abc}
text text text text text text text text text text ... text
text text text !!text text text text text text text ... text
text text text text text text text text text text ... text
text text text text text text text text text text ... text

\end{document}

TeX does not break between the abc heading and the !! line, it takes the whole thing over including the heading:

Note to do this it has to be allowed to stretch the white space enough to account for the line taken over. The stretchy space of the paragraph heading itself and.or between paragraphs should be enough, but it all depends on what class and settings you have used, but haven't revealed.

Answer 2

There are different ways of keeping it together:

• use the \needspace command from the needspace package
• put your paragraph in a \vbox that won't be break
• use the samepage package

For the needspace command:

\usepackage{needspace}

\begin{document}
...
\needspace{5em}
\paragraph{A paragraph}
Some more text

\end{document}

For the \vbox strategy:

\begin{document}
...
\vbox{
\paragraph{A paragraph}
Some more text
}
\end{document}

For the samepage package:

\usepackage{samepage}

\begin{document}
...
\begin{samepage}
\paragraph{A paragraph}
Some more text
\end{samepage}
\end{document}