~\Downloads\toreduce> pandoc -v
pandoc 3.9.0.2
Features: +server +lua
Scripting engine: Lua 5.4
User data directory: C:\Users\struc\AppData\Roaming\pandoc
Copyright (C) 2006-2025 John MacFarlane. Web: https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.
~\Downloads\toreduce> pandoc -f 'epub' -t 'pdf' -o 'x.pdf' --split-level=1 --pdf-engine=typst --standalone x.epub
error: label `<nav.xhtml_toc>` does not exist in the document
┌─ \\?\C:\Users\struc\Downloads\toreduce\toPFD84.typ:167:3
│
167 │ + #link(<nav.xhtml_toc>)[Table of Contents]
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: label `<s04.xhtml_s04-a01>` does not exist in the document
┌─ \\?\C:\Users\struc\Downloads\toreduce\toPFD84.typ:912:18
│
912 │ detail how \"The #link(<s04.xhtml_s04-a01>)[Emperor\'s] New Clothes\"
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: label `<s04.xhtml_s04-a03>` does not exist in the document
┌─ \\?\C:\Users\struc\Downloads\toreduce\toPFD84.typ:4497:1
│
4497 │ #link(<s04.xhtml_s04-a03>)[Dryad] stepped quickly out.
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: label `<s04.xhtml_s04-a02>` does not exist in the document
┌─ \\?\C:\Users\struc\Downloads\toreduce\toPFD84.typ:2365:26
│
2365 │ Farewell, farewell, thou #link(<s04.xhtml_s04-a02>)[warrior] brave, For
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error producing PDF.
for current latest verison
A used epub file can be found here among other sample epub