PDF Conversion API
for Developers

const response = await fetch('https://buildpdf.co/api/v1/convert', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': process.env.BUILDPDF_API_KEY,
  },
  body: JSON.stringify({
    html: '<h1>Hello World</h1><p>My first PDF!</p>',
    options: { pageSize: 'a4' }
  })
});

const { pdf } = await response.json();
// pdf is a base64-encoded PDF — save it:
fs.writeFileSync('output.pdf', Buffer.from(pdf, 'base64'));

import requests, base64, os

response = requests.post(
    "https://buildpdf.co/api/v1/convert",
    headers={"X-API-Key": os.environ["BUILDPDF_API_KEY"]},
    json={
        "html": "<h1>Hello World</h1><p>My first PDF!</p>",
        "options": {"pageSize": "a4"}
    }
)

pdf_bytes = base64.b64decode(response.json()["pdf"])
with open("output.pdf", "wb") as f:
    f.write(pdf_bytes)

<?php
$ch = curl_init('https://buildpdf.co/api/v1/convert');
curl_setopt_array($ch, [
    CURLOPT_POST           => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'Content-Type: application/json',
        'X-API-Key: ' . getenv('BUILDPDF_API_KEY'),
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'html'    => '<h1>Hello World</h1>',
        'options' => ['pageSize' => 'a4'],
    ]),
]);
$result = json_decode(curl_exec($ch), true);
file_put_contents('output.pdf', base64_decode($result['pdf']));