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Add tagged PDF accessibility support

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Switch to LuaLaTeX (better tagged PDF support), add \DocumentMetadata
for PDF 2.0 and language metadata, enable tagpdf tagging, and mark
tikz overlay commands (\credit, \marktopleft, \markbottomright) as
PDF artifacts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Benjamin Mako Hill
2026-03-31 11:14:19 -07:00
parent 047c603347
commit 2841ae97df
2 changed files with 12 additions and 5 deletions
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2
slides_template/Makefile
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@@ -4,7 +4,7 @@ all: notes.config vc $(patsubst %.tex,%.pdf,$(wildcard *.tex))
pdf: all pdf: all
%.pdf: %.tex %.pdf: %.tex
latexmk -f -xelatex $< latexmk -f -lualatex $<
# latexmk -f -pdf -pdflatex="xelatex -synctex=1 %S %O" -verbose -file-line-error -interaction=nonstopmode $< # latexmk -f -pdf -pdflatex="xelatex -synctex=1 %S %O" -verbose -file-line-error -interaction=nonstopmode $<
# qpdf --qdf --object-streams=disable $@ - | sponge $@ # qpdf --qdf --object-streams=disable $@ - | sponge $@
# sed -e 's|/PageLabels|/BageLapels|g' < $@ |sponge $@ # sed -e 's|/PageLabels|/BageLapels|g' < $@ |sponge $@

15
slides_template/example.tex
View File

@@ -1,8 +1,15 @@
\DocumentMetadata{
pdfversion=2.0,
lang=en-US,
}
\documentclass[10pt,xcolor=dvipsnames,aspectratio=169]{beamer} \documentclass[10pt,xcolor=dvipsnames,aspectratio=169]{beamer}
\usetheme{metropolis} \usetheme{metropolis}
\usepackage{appendixnumberbeamer} \usepackage{appendixnumberbeamer}
\usepackage{tagpdf}
\tagpdfsetup{activate-all}
\usepackage{pgfpages} \usepackage{pgfpages}
\input{notes.config} \input{notes.config}
@@ -109,10 +116,10 @@ BoldItalicFont = *-BoldItalic
\tikzstyle{every picture}+=[overlay,remember picture] \tikzstyle{every picture}+=[overlay,remember picture]
% add functions to circle parts of slides (e.g., in tables) % add functions to circle parts of slides (e.g., in tables)
\newcommand\marktopleft[1]{\tikz \node (marker-#1-a) at (0,1.5ex) {};} \newcommand\marktopleft[1]{\tagmcbegin{artifact}\tikz \node (marker-#1-a) at (0,1.5ex) {};\tagmcend}
\newcommand\markbottomright[1]{% \newcommand\markbottomright[1]{%
\tikz{\node (marker-#1-b) at (0,0) {};} \tagmcbegin{artifact}\tikz{\node (marker-#1-b) at (0,0) {};}\tagmcend
\tikz[dashed,inner sep=3pt]{\node[violet!75,ultra thick,draw,rounded rectangle,fit=(marker-#1-a.center) (marker-#1-b.center)] {};}} \tagmcbegin{artifact}\tikz[dashed,inner sep=3pt]{\node[violet!75,ultra thick,draw,rounded rectangle,fit=(marker-#1-a.center) (marker-#1-b.center)] {};}\tagmcend}
% create an empty quotetxt so we can reuse it % create an empty quotetxt so we can reuse it
\newcommand{\quotetxt}{} \newcommand{\quotetxt}{}
@@ -153,7 +160,7 @@ BoldItalicFont = *-BoldItalic
\newcommand{\credit}[1]{% \newcommand{\credit}[1]{%
\tikz[overlay]{\node at (current page.south west) \tikz[overlay]{\node at (current page.south west)
[anchor=south west, yshift=3pt, xshift=2pt] [anchor=south west, yshift=3pt, xshift=2pt]
{\smaller \smaller {[}#1{]}};}} {\tagmcbegin{artifact}\smaller \smaller {[}#1{]}\tagmcend};}}
\setlength{\parsep}{1em} \setlength{\parsep}{1em}