I am using the code
\includegraphics[width=\textwidth]{image.jpg}
\addcontentsline{lof}{figure}{Image caption}
to add a frontispiece image to my document along with an entry in the List of Figures. Is there a way to replace the page number for this entry in the List of Figures with the word "frontis"?
Use the tocloft package which enables control of many aspects of the ToC and friends.
% frontispieceprob.tex SE 576148
\documentclass{book}
\usepackage{graphicx}
\usepackage{tocloft}
\begin{document}
THE FRONTISPIECE
\vspace{4\baselineskip}
% The frontispiece picture and caption
\includegraphics[width=\textwidth]{image.jpg}
\begin{center}
Image caption
\end{center}
% add it to the LoF
\cftlocalchange{lof}{3em}{2.55em} % need more space for page designation
\cftaddtitleline{lof}{figure}{Image caption}{frontis} % the LoF entry
\cftlocalchange{lof}{1.55em}{2.55em} % revert to normal page number space
\clearpage
\tableofcontents
\listoffigures
\chapter{A Chapter}
\begin{figure}
\centering
AN ILLUSTRATION
\caption{An illustration}
\end{figure}
\end{document}
If you don't increase the allowable space for page numbers then the dotted line continues into "frontis".
I've just done a crude frontispiece page; I'm sure yours is much better.
titlepageor what? – egreg Dec 23 '20 at 13:07includegraphicscommand on an empty page in thearticleclass. So I guess my question might boil down to whether I can replace the page number with arbitrary text when adding a manual entry to the lof. – Ubiquitous Dec 23 '20 at 13:14\addtocontents{lof}{\protect\contentsline{figure}{caption}{frontis}}would work (cf. https://tex.stackexchange.com/questions/203158/how-to-add-custom-lines-with-specified-page-number-to-the-table-of-contents). – Marijn Dec 23 '20 at 15:31