Convert markdown with mermaid and math formulas to pdf

md2pdf.sh

#!/bin/bash

input=$1
set -e 

if [ "$#" -ne 1 ]; then
    echo "One argument required"
    exit 1  
fi

if [ ! -f $1 ]; then
    echo "$1 not found!"
    exit 1
fi

math_md=`basename $1 .md`_math.md
mmd_md=`basename $1 .md`_mmd.md
pdf=`basename $1 .md`.pdf

# render mermaid
npx -p @mermaid-js/mermaid-cli mmdc -p puppeteerConfigFile.json -s 4 -i $1 --outputFormat=png -o $mmd_md

# render math formulas
python -m readme2tex --output $math_md $mmd_md --username tony --project test --nocdn

# replace git cdn urls by local ones
sed -i $math_md -e "s/https:\/\/.*svgs\//svgs\//"

# render pdf with pandoc
pandoc -V margin-top=2cm -V margin-left=2cm -V margin-right=2cm -V margin-bottom=2cm -V papersize=A4 -t html $math_md -o $pdf --pdf-engine-opt=--enable-local-file-access

# cleanup
rm svgs/*.svg
rmdir svgs
rm $math_md
rm $mmd_md
rm `basename $1 .md`_mmd*.png

puppeteerConfigFile.json

{
  "executablePath": "/snap/bin/chromium"
}

Requirements:

• npm (npx command)
• readme2text (pip install readme2tex)
• pandoc (apt install pandoc or whatever)