Express.js Working Example

Thank you very much for this amazing lib! Great job!

I would like to use pdf-lib in my express.js app. Below is a working example of an express.js app sending a Hello World pdf which Chrome reads just fine.

Am I doing things correctly?

'use strict';

var PdfLib = require('pdf-lib');
var PDFDocument = PdfLib.PDFDocument;
var StandardFonts = PdfLib.StandardFonts;
var rgb = PdfLib.rgb;

var express = require('express');
var app = express();
var port = 3000;

async function createPdf() {
	var pdfDoc = await PDFDocument.create();
	var timesRomanFont = await pdfDoc.embedFont(StandardFonts.TimesRoman);
	var page = pdfDoc.addPage();
	var { width, height } = page.getSize();
	var fontSize = 30;
	page.drawText('Hello World', {
		x: 50,
		y: height - 4 * fontSize,
		size: fontSize,
		font: timesRomanFont,
		color: rgb(0, 0.53, 0.71),
	});
	var pdfBytes = await pdfDoc.save();
        var pdfBuffer = Buffer.from(pdfBytes.buffer, 'binary');
	return pdfBuffer;
}

app.get('/', function(req, res) {
	createPdf().then(function(pdfBuffer) {
		res.status(200);
		res.type('pdf');
		res.send(buffer);
	}).catch(function (err) {
		res.status(500);
		res.send(err.message);
	});
});

app.listen(port, function() {
	console.log(`Example app listening on port ${port}!`);
});

[dhollenbeck]

The example code above works correctly with no problems. I just posted it in case it helps others. @Hopding your work is awesome. Thank you so much.

[scottie-schneider]

Thank you for leaving this. Allowed me to finally get express up and running after 3 days of frustration. One slight modification to the code: createPdf().then(function(pdfBuffer) { res.status(200); res.type('pdf'); res.send(pdfBuffer); })