# How can I write $_{\text{s}}$ in a bookmark? [closed]

I need to write $E_{\text{s}}$ in a pdf-bookmark, but

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage[unicode]{hyperref}
%209B ;LATIN SUBSCRIPT SMALL LETTER S;Lm;0;L;<sub> 0073;;;;N;;;;;
\DeclareTextCommand{\textsinferior}{PU}{\9040\233}%
\begin{document}
\section{\texorpdfstring{$E_{\text{s}}$}{E\textsinferior}}
\end{document}


gives as bookmark (at least in Adobe Reader 10.1.3 and Sumatra, both @ Win XP) and no error in the log-file. What is my mistake, and how is it done right?

I have placed the pdf at https://www.zeta-uploader.com/1675640013 (link will rot at 2012/06/19).

Edit: As was confirmed by tests performed by fellow tex.SE users (thanks!), on some systems the pdf displays all right, on other systems it does not. Thus this is a viewer/os/installed fonts/... issue and not a TeX one. Sorry to have bothered you & thanks for testing (.tex as well as .pdf).

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## closed as off topic by Stephen, Seamus, egreg, lockstep, Marco DanielJun 15 '12 at 15:19

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It seems to be pdf-reader dependent. I have no problem with the bookmark in either Evince or Okular on Linux. What version of Adobe Reader do you use? –  aagaard Jun 12 '12 at 10:05
Using Adobe reader X I have no problems at all. –  Rick de Groot Jun 12 '12 at 10:14
I concur with @aagaard: the font used by Adobe Reader must have the character in order to show it. On my machine it shows indeed a (very tiny) "subscript s". –  egreg Jun 12 '12 at 10:20
@egreg: Could you please check whether my pdf is OK? https://www.zeta-uploader.com/1675640013 If it is, it's not TeX-related at all but some font problem on this PC. –  Stephen Jun 12 '12 at 11:28
@Stephen It shows exactly like my test. –  egreg Jun 12 '12 at 12:03