HTML to PDF API: Convert HTML code to PDF file

A JSON API to convert HTML to a PDF document, plain and simple. Use this API to convert custom HTML to high-quality PDF file, you can set PDF paper size and format (A1, A4, etc) and also "fit" the web page into a one PDF page.

Consumes 20 credits per API call

# Example Curl request from the command line: curl -X POST "https://api.apivoid.com/v2/html-to-pdf" \ -H "Content-Type: application/json" \ -H "X-API-Key: YOUR_API_KEY_HERE" \ -d '{"html_base64":"PGh0bWw+PGJvZHk+PGgxPlRlc3RpbmcgSFRNTCB0byBQTkcgQVBJPC9oMT48L2JvZHk+PC9odG1sPg=="}' # Example JSON output for a 200 HTTP status code: { "rendered_file": { "format": "PDF", "date_time_utc": "2024-11-29 19:05:01", "base64_file": "iVBORw0KGgoAAAANSUhEUgAAB4AAAAQ4CAIAAABnsVYUAAAAAXNSR0IArs4c6QAAIABJREFUeJzs3WmYVOWd8OFqa...", "file_size_readable": "14.73 KB", "file_size_bytes": 15080 }, "elapsed_ms": 5485 }

Convert custom HTML code into high-quality PDF file

Businesses and startups use this HTML to PDF API to convert custom HTML code (such as a newsletter template, a HTML template page, a HTML invoice, an so on) into PDF file.

HTML Code to PDF

This API can efficiently convert custom HTML code into a PDF (with custom format) document file.

Change PDF Format

Customize the PDF: set paper size, format (A1, A4, etc), and also "fit" the web page into a one PDF page.

High-Quality Document

The API will create a high-quality PDF document file of your custom HTML code, you'll love it!

Fast Response

The PDF is generated in 10-20 seconds on average, depends on the complexity of the HTML code.

Take a look at some real-world use cases of this API service

Our API can be used in many ways, from cybersecurity tasks to marketing/research tasks. Here we showcase the most popular use cases according to our customers usage:

HTML Invoice to PDF

Convert custom HTML invoice-like web pages into high-quality PDF for sending to your customers.

Save HTML as PDF

Easily convert to PDF any custom HTML code, e.g a web template page or a newsletter template.

PDF for Presentations

Need to rended some HTML code to PDF? Just send it encoded in base64 and wait a few seconds.

Automate Tasks

Use this API to effortlessly automate any manual task of converting HTML to PDF in no time.

USAGE EXAMPLE

Learn how seamless it is to add and use HTML to PDF API anywhere you want

All it takes is a HTTPS POST request with JSON payload to our endpoint, and you’ll receive the response within seconds, usually within 10-20 seconds. Here are a few code examples to use the API:

$html = '<html><body><h1>Testing</h1><p>Example text...</p></body></html>';
$html_base64 = base64_encode($html);

$apiUrl = 'https://api.apivoid.com/v2/html-to-pdf';
$apiKey = 'your_api_key_here';

$ch = curl_init($apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json', 'X-API-Key: ' . $apiKey]);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(['html_base64' => $html_base64]));
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($httpCode === 200) {
    $responseData = json_decode($response, true);

    print_r($responseData);
    
    // Save the "base64_file" data as PDF file
    if (isset($responseData['rendered_file']['base64_file'])) {
        $save_as = realpath(dirname(__FILE__)) . "/document.pdf";
    
        file_put_contents($save_as, base64_decode($responseData['rendered_file']['base64_file']));
    
        if (file_exists($save_as)) {
            echo '<p>File document.pdf saved successfully.</p>';
        } else {
            echo '<p>Failed to create document.pdf file.</p>';
        }
    }
}