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diff --git a/Master/texmf-dist/doc/latex/accsupp/README.md b/Master/texmf-dist/doc/latex/accsupp/README.md
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+# accsupp
+
+accsupp package for LaTeX
+
+
+
+Since PDF 1.5 portions of a page can be marked for better
+accessibility support.
+For example, replacement texts or expansions of abbreviations can be
+provided. Package accsupp starts with providing a minimal
+low-level interface for programmers. Status is experimental.
+
diff --git a/Master/texmf-dist/doc/latex/accsupp/accsupp-example1.tex b/Master/texmf-dist/doc/latex/accsupp/accsupp-example1.tex
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index 00000000000..569ad9f748d
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+%%
+%% This is file `accsupp-example1.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% accsupp.dtx  (with options: `example1')
+%% 
+%% This is a generated file.
+%% 
+%% Project: accsupp
+%% Version: 2019/12/05 v0.6
+%% 
+%% Copyright (C)
+%%    2007, 2010 Heiko Oberdiek
+%%    2016-2019 Oberdiek Package Support Group
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3c of this license or (at your option) any later
+%% version. This version of this license is in
+%%    https://www.latex-project.org/lppl/lppl-1-3c.txt
+%% and the latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of
+%% LaTeX version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status "maintained".
+%% 
+%% The Current Maintainers of this work are
+%% Heiko Oberdiek and the Oberdiek Package Support Group
+%% https://github.com/ho-tex/accsupp/issues
+%% 
+%% 
+%% This work consists of the main source file accsupp.dtx
+%% and the derived files
+%%    accsupp.sty, accsupp.pdf, accsupp.ins, accsupp.drv,
+%%    accsupp-pdftex.def, accsupp-luatex.def, accsupp-dvipdfm.def,
+%%    accsupp-dvips.def,
+%%    accsupp-example1.tex, accsupp-example2.tex,
+%%    accsupp-test1.tex.
+%% 
+\documentclass{article}
+\usepackage{accsupp}[2007/11/14]
+\usepackage{centernot}
+% U+2226 NOT PARALLEL
+% \mathrel{...} prevents page break in between
+\newcommand*{\notparallel}{%
+  \ensuremath{%
+    \mathrel{%
+      \BeginAccSupp{method=hex,unicode,ActualText=2226}%
+      \centernot{\parallel}%
+      \EndAccSupp{}%
+    }%
+  }%
+}
+\begin{document}
+\begin{equation}
+A\notparallel B
+\end{equation}
+\end{document}
+\endinput
+%%
+%% End of file `accsupp-example1.tex'.
diff --git a/Master/texmf-dist/doc/latex/accsupp/accsupp-example2.tex b/Master/texmf-dist/doc/latex/accsupp/accsupp-example2.tex
new file mode 100644
index 00000000000..678a84b470f
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/accsupp/accsupp-example2.tex
@@ -0,0 +1,62 @@
+%%
+%% This is file `accsupp-example2.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% accsupp.dtx  (with options: `example2')
+%% 
+%% This is a generated file.
+%% 
+%% Project: accsupp
+%% Version: 2019/12/05 v0.6
+%% 
+%% Copyright (C)
+%%    2007, 2010 Heiko Oberdiek
+%%    2016-2019 Oberdiek Package Support Group
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3c of this license or (at your option) any later
+%% version. This version of this license is in
+%%    https://www.latex-project.org/lppl/lppl-1-3c.txt
+%% and the latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of
+%% LaTeX version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status "maintained".
+%% 
+%% The Current Maintainers of this work are
+%% Heiko Oberdiek and the Oberdiek Package Support Group
+%% https://github.com/ho-tex/accsupp/issues
+%% 
+%% 
+%% This work consists of the main source file accsupp.dtx
+%% and the derived files
+%%    accsupp.sty, accsupp.pdf, accsupp.ins, accsupp.drv,
+%%    accsupp-pdftex.def, accsupp-luatex.def, accsupp-dvipdfm.def,
+%%    accsupp-dvips.def,
+%%    accsupp-example1.tex, accsupp-example2.tex,
+%%    accsupp-test1.tex.
+%% 
+\documentclass{article}
+\usepackage[unicode]{hyperref}
+\usepackage{accsupp}[2007/11/14]
+\begin{document}
+  \begin{equation}
+    \BeginAccSupp{
+      method=pdfstringdef,
+      unicode,
+      ActualText={%
+        a\texttwosuperior +b\texttwosuperior
+        =c\texttwosuperior
+      }
+    }
+    a^2 + b^2 = c^2
+    \EndAccSupp{}
+  \end{equation}
+\end{document}
+\endinput
+%%
+%% End of file `accsupp-example2.tex'.
diff --git a/Master/texmf-dist/doc/latex/accsupp/accsupp.pdf b/Master/texmf-dist/doc/latex/accsupp/accsupp.pdf
new file mode 100644
index 00000000000..9b92f33e007
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/accsupp/accsupp.pdf