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Generate PDF From HTML File - JavaScript

PDF from HTML (HTML to PDF) sample in JavaScript demonstrating ‘Generate PDF From HTML File’

var https = require("https");
var path = require("path");
var fs = require("fs");

// The authentication key (API Key).
// Get your own by registering at
const API_KEY = "***************************";

// HTML Input
const inputHtml = "./sample.html";
// Destination PDF file name
const DestinationFile = "./result.pdf";

// Prepare requests params as JSON
// See documentation:
var parameters = {};

// Input HTML code to be converted. Required.
parameters["html"] = fs.readFileSync(inputHtml, "utf8");

// Name of resulting file
parameters["name"] = path.basename(DestinationFile);

// Set to css style margins like 10 px or 5px 5px 5px 5px.
parameters["margins"] = "5px 5px 5px 5px";

// Can be Letter, A4, A5, A6 or custom size like 200x200
parameters["paperSize"] = "Letter";

// Set to Portrait or Landscape. Portrait by default.
parameters["orientation"] = "Portrait";

// true by default. Set to false to disbale printing of background.
parameters["printBackground"] = true;

// If large input document, process in async mode by passing true
parameters["async"] = false;

// Set to HTML for header to be applied on every page at the header.
parameters["header"] = "";

// Set to HTML for footer to be applied on every page at the bottom.
parameters["footer"] = "";

// Convert JSON object to string
var jsonPayload = JSON.stringify(parameters);

// Prepare request to `HTML To PDF` API endpoint
var url = '/v1/pdf/convert/from/html';
var reqOptions = {
    host: "",
    path: url,
    method: "POST",
    headers: {
        "x-api-key": API_KEY,
        "Content-Type": "application/json",
        "Content-Length": Buffer.byteLength(jsonPayload, 'utf8')

// Send request
var postRequest = https.request(reqOptions, (response) => {
    response.on("data", (d) => {
        // Parse JSON response
        var data = JSON.parse(d);
        if (data.error == false) {
            // Download PDF file
            var file = fs.createWriteStream(DestinationFile);
            https.get(data.url, (response2) => {
                    .on("close", () => {
                        console.log(`Generated PDF file saved as "${DestinationFile}" file.`);
        else {
            // Service reported error
}).on("error", (e) => {
    // Request error

// Write request data

<!DOCTYPE html>
<html xmlns="" lang="" xml:lang="">

	<title>TODO List</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

	<h1>TODO List</h1>
			Wash the car
			Do the dishes
			Walk the dog
			Buy A4 papers

</html> Web API: the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

Get your API key here!

Download Source Code (.zip)

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