How do I fix this hyperref warning for \textsubscript in the chapter title?

Question

\chapter[Short Chapter Title \& Lorem\textsubscript{A}]{Long Chapter Title \& Lorem\textsubscript{A}}

warning:

Package hyperref Warning: Token not allowed in a PDF string (Unicode): removing `\mathsurround' on input line 1.
Package hyperref Warning: Token not allowed in a PDF string (Unicode): removing `\z@' on input line 1.
Package hyperref Warning: Token not allowed in a PDF string (Unicode): removing `subscript' on input line 1.

it is compiling, but I still have the warning. I've seen advice for fixing this for mathmode but I don't want the A to be in mathmode italics

LaTeX sometimes tells you that some things don't work inside PDF bookmarks. In this case, it seems like that includes \textsubscript. — User23456234, Mar 18 '23 at 18:03

Niranjan · Accepted Answer · 2023-03-19T05:02:06.273

2

You can use \texorpdfstring{<latex-code>}{<bookmark-text>} macro provided by hyperref like this:

\documentclass{article}
\usepackage{hyperref}
\begin{document}
\section{hello \texorpdfstring{\textsuperscript{world}}{world}}
\end{document}

edited Mar 19 '23 at 05:02

answered Mar 18 '23 at 18:30

Niranjan

3,435

2

You don't have any spaces in either string. – barbara beeton Mar 18 '23 at 19:36
Ah, okay, do you mean hello world instead of helloworld? Got it, editing right away. Thanks. – Niranjan Mar 19 '23 at 05:01

How do I fix this hyperref warning for \textsubscript in the chapter title?

1 Answers1