I run LuaHBTeX, Version 1.12.0 (TeX Live 2020/W32TeX) (format=lualatex 2020.12.22) and try to compile
\documentclass{article}
\pdfinfoomitdate 1
\begin{document}
Lorem ipsum\ldots
\end{document}
with TeXStudio and get an error Undefined control sequence. \pdfinfoomitdate. Do I miss something in my installation (on Windows)?
pdflatexonly, see for example https://tex.stackexchange.com/questions/362366/xelatex-version-of-pdfinfoomitdate-or-method-to-accomplish-the-same – Marijn Dec 23 '20 at 09:49pdfprivacyis compatible with LuaTeX but obviously not. Which means I'll stuck to the cryptic\pdfvariable suppressoptionalinfo 767flag of https://tex.stackexchange.com/a/225790/48642 – LeO Dec 23 '20 at 10:48