Latex margin notes
Margin notes - Overleaf, Online-LaTeX-Editor:
\marginpar{text} is the vanilla option, but this works in all cases ever:
\usepackage{marginnote}
\marginnote{text}
EXCEPT I couldn’t find a way to add footnote markers to have numbered margin notes separate from the real footnotes.
But this solves everything, quoting directly1:
\newcounter{mgncount}
\renewcommand\themgncount{\arabic{mgncount} }
\newcommand\marginfootnote[1]{\refstepcounter{mgncount}\marginpar{{$^\themgncount$}#1}\footnotemark}
\begin{document}
Can we put a footnote with number in the margin and a number in the text?\marginfootnote{There's a number here!}
Another test\marginfootnote{Working!}
One more try\marginfootnote{Successful!}
\end{document}
EDIT: actually it doesn’t and uses the number from footnotes in the text itself. :(
Ah, the sidenotes package exists:
https://ctan.math.utah.edu/ctan/tex-archive/macros/latex/contrib/sidenotes/sidenotes.pdf
But uses only 1…3-type numbers.
Yes this is it! CTAN: Paket sidenotesplus
%\usepackage{sidenotes}
\usepackage[mark=Alph]{sidenotesplus}
...
\sidenote{does basically what footnote does}
It has a lot of options and can do a lot of things, yes, this is it, it’s perfect. The example page has everything: https://ctan.math.illinois.edu/macros/latex/contrib/sidenotesplus/tests-sidenoteplus.pdf
See also CTAN: Marginal topic.
marginpar - Footnote and number in margin - TeX - LaTeX Stack Exchange