Hi, 

I do not know how to do that properly (if someone has a solution, I'd also be interested), but here is something which seems to give a partial solution: 

```
\usemodule[ipsum]

\starttext

\placecontent

\section{Section 1}

\dorecurse {6} \ipsum

\pagebreak

\section{Section 2}

\def\romanpage{\convertnumber{romannumerals}{\userpage}}
\setupuserpagenumber[
    numberconversion=romannumerals,
    viewerprefix=\romanpage -,
]

\dorecurse {6} \ipsum

\stoptext

```

In section 2, pages are shown with roman numerals in the document and as (roman numerals)-(arabic numerals) in the outline with Okular and Evince. I don't know how to get only the first part, though.

Best regards,
Florent

Le mar. 24 sept. 2024 à 17:20, Shiv Shankar Dayal <shivshankar.dayal@gmail.com> a écrit :

> Did you try a different PDF viewer? The display of the PDF outline
> probably depends on the viewer.

I used Evince and Okular(I am on Linux) and both work for LaTeX
generated pdfs.

> Maybe try
> \enabledirectives[references.bookmarks.preroll]
> or
> \setupheads[expansion=yes]

Tried both but they do not work.

--
Respect,
Shiv Shankar Dayal
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