I would like to have a tooltip appear, when I hover the mouse over a glossaries symbol, so the entry's description appears in the tooltip. I am using glossaries v4.33 and pdfcomment v2.4. However the tooltip doesn't resolve the \glsdesc-command in the pdf-output. I won't be needing the link in the \glssymbol, since the information would be presented in the tooltip, which should make my question differ from this question
\documentclass{report}
\usepackage{glossaries, pdfcomment}
\setglossarysection{section}
\newglossaryentry{ex}{name = {Example name}, symbol = {\ensuremath{\mathcal{E}^n}}, description = {a suitable description for the entry}}
\makenoidxglossaries
\listfiles
\begin{document}
\pdftooltip{\glssymbol{ex}}{\glsdesc{ex}}
\printnoidxglossary
\end{document}

\glsentrydescrather than\glsdescif it needs to be fully expanded. – Nicola Talbot Dec 05 '17 at 11:08