The following patch (via etoolbox) saves the sectional content (number, title and font) in a macro that is re-evaluated at page shipout (as supplied by everyshi) if there is text overflow. Overflow is established using the condition
\ifdim\pagetotal>\pagegoal % <do something> \fi
that checks whether the gathered page content (of height \pagetotal) extends beyond the allowed total (of height \pagegoal).

\documentclass{article} \usepackage{lipsum}% http://ctan.org/pkg/lipsum \usepackage{everyshi}% http://ctan.org/pkg/everyshi \usepackage{etoolbox}% http://ctan.org/pkg/etoolbox \makeatletter \let\@section@title@\relax% Sectional heading storage \patchcmd{\@sect}% <cmd> {\@xsect}% <search> {\gdef\@section@title@{% Store sectional heading {\noindent#6\@svsec#8\normalfont\ \smash{(continued)}}\par\bigskip}\@xsect}% <replace> {}{}% <success><failure> \EveryShipout{% \ifdim\pagetotal>\pagegoal% There is content overflow on this page \aftergroup\@section@title@% Reprint/-insert sectional heading \fi% } \makeatother \begin{document} \section{A section}\lipsum[1-6] \subsection{A subsection}\lipsum[7-14] \end{document}
The sectional content is captured in \@section@title@ and includes the latest sectional title used (anything from level 1 = \section to level 5 = \paragraph).
Customizations include using only a specific sectional unit (like \section, say). Also, to duplicate the spacing after the sectional header when traditionally used, rather than issuing \bigskip.
The above works in the context of the standard LaTeX document classes (like book, article and report) and may require additional modifications if used in other document classes, or in conjunction with other sectional heading packages.
everyshi(which stands for 'Every Ship Out') package is appropriate here? It sounds like you want similar features provided by thefancyhdrpackageeveryshiis appropriate. (i'm adding this comment because another comment points to running heads and footers, which is quite different.)afterpagepackage: changing-the-table-of-contents and insert-text-before-end-of-page-and-at-the-begining-of-the-next-page