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# PDF Extra
-PDF Extra provides extra PDF features for OpTeX.
+PDF Extra provides extra PDF features for OpTeX (or in limited form for plain
+LuaTeX and LuaLaTeX).
As a minimalistic package OpTeX doesn't support "advanced" features of PDF file
format in the base. This third party package aims to provide them. Summary of
@@ -21,13 +22,18 @@ well as technical documentation interleaved with source code.
# Installation instructions
-Put `pdfextra.opm` where `optex` can find it.
+Put `pdfextra.opm` where your TeX can find it. Additionaly, for plain/LaTeX you
+need `pdfextra.tex`, and on top of that `pdfextra.sty` for LaTeX.
Or just copy paste anything you want.
# Usage
-In OpTex do: `\load [pdfextra]`.
+In OpTeX do: `\load [pdfextra]`.
+
+In plain LuaTeX do: `\input pdfextra`.
+
+In LuaLaTeX do: `\usepackage{pdfextra}`.
# License