md-to-pdf-config.js

const admonition = require('marked-admonition-extension');
const markedKatex = require('marked-katex-extension');
const extendedTables = require("marked-extended-tables");

const markedKatexOptions = {
    throwOnError: false
  };

const mermaid_renderer = {
    code(code, infoString) {
        if (infoString === 'mermaid'){
            return `<pre class="mermaid">${code}</pre>`
        }
        return false
    },
};

module.exports = {
	stylesheet: [
        "https://cdnjs.cloudflare.com/ajax/libs/github-markdown-css/5.7.0/github-markdown.min.css",
        "https://cdn.jsdelivr.net/npm/katex/dist/katex.min.css",
        "docs/base-style.css"
    ],
	body_class: 'markdown-body',
    marked_extensions: [ admonition.default, markedKatex(markedKatexOptions), extendedTables() ],
	marked_options: [{ mermaid_renderer }],
	pdf_options: {
		format: 'a4',
		margin: '20mm 10mm',
		printBackground: true,
        footerTemplate: "<section><span class='pageNumber'></span> / <span class='totalPages'></span></section>",
        headerTemplate: "<style> section { margin: 0 10mm; font-family: Yu Gothic UI; system-ui; font-size: 12px; width: 100%; text-align: right; } .flex-container { display: flex; justify-content: space-between; align-items: center; } </style><section><span class='title'></span></section>",
	},
    script: [
        { url: 'https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js' },  
        { content: "mermaid.initialize({ startOnLoad: false, themeVariables: { fontSize: '14px', fontFamily: 'Yu Gothic UI, system-ui' } }); (async () => { await mermaid.run(); })();" },
        { url: 'https://cdn.jsdelivr.net/npm/katex/dist/katex.min.js' },
        { url: 'https://cdn.jsdelivr.net/npm/marked-katex-extension/lib/index.umd.js' },
    ],
	stylesheet_encoding: 'utf-8',
};