Generate PDF From HTML File - JavaScript
PDF from HTML (HTML to PDF) sample in JavaScript demonstrating ‘Generate PDF From HTML File’
app.js
var https = require("https");
var path = require("path");
var fs = require("fs");
// The authentication key (API Key).
// Get your own by registering at https://app.pdf.co
const API_KEY = "***************************";
// HTML Input
const inputHtml = "./sample.html";
// Destination PDF file name
const DestinationFile = "./result.pdf";
// Prepare requests params as JSON
// See documentation: https://apidocs.pdf.co/?#1-json-pdfconvertfromhtml
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: "api.pdf.co",
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) => {
response2.pipe(file)
.on("close", () => {
console.log(`Generated PDF file saved as "${DestinationFile}" file.`);
});
});
}
else {
// Service reported error
console.log(data.message);
}
});
}).on("error", (e) => {
// Request error
console.log(e);
});
// Write request data
postRequest.write(jsonPayload);
postRequest.end();
sample.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
<head>
<title>TODO List</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>TODO List</h1>
<ul>
<li>
Wash the car
</li>
<li>
Do the dishes
</li>
<li>
Walk the dog
</li>
<li>
Buy A4 papers
</li>
</ul>
</body>
</html>
PDF.co 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.