Hi,
consider the following MWE (XeLaTeX)
\documentclass{article}
\usepackage{fontspec}
\setmainfont[Numbers=OldStyle]{Libertinus Serif}
\XeTeXgenerateactualtext 1
\begin{document}
\Huge
\textbf{\emph{0123456789}}
\end{document}
The font libertinus serif can be found here
https://ctan.org/pkg/libertinus
With Adobe READER, a pastebin of the PDF output is ok (we get numbers.)
With Apple Preview, we does not get the good characters.
Is it a problem of Apple Preview or a XeTeX bug?
Note that with LuaLaTeX
\documentclass{article}
\usepackage{fontspec}
\setmainfont[Numbers=OldStyle]{Libertinus Serif}
\begin{document}
\Huge
\textbf{\emph{0123456789}}
\end{document}
We get a pastebinable PDF with Appel Preview.
Best regards
Maïeul
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