Basic Text → PDF converter

txt2pdf.js

const puppeteer = require('puppeteer');
const fs = require('fs');

if (process.argv.length < 3) {
	console.log('Usage: node txt2pdf.js [file]');
	process.exit(1);
}

const input = process.argv[2];
const output = `${input}.pdf`;
const css = `
<style>
pre {
	font: 11px/13px menlo;
}
</style>
`;

(async () => {
	const browser = await puppeteer.launch({
		headless: true
	});
	const page = await browser.newPage();
	const source = fs.readFileSync(input, 'utf8');
	await page.setContent(`${css}<pre>${source}</pre>`, {
		waitUntil: 'domcontentloaded'
	});
	await page.pdf({
		path: output,
		margin: {
			top: '0.5in',
			right: '0.75in',
			bottom: '0.5in',
			left: '0.75in'
		}
	});
	await browser.close();
	console.log(`Saved ${output}`);
})();