01Rendering Engine

HTML in.
Pixel-perfect
PDFs out.

A precision rendering API. Send HTML or a URL, get back a pixel-perfect document — on real Chrome, wherever your serverless functions can't run it.

Open the playground Read the docs →

Invoice

#1042

Paid

Growth plan$49.00

Overage · 8,200 docs$16.40

Total$65.40

210 × 297 mm · A4application/pdf

POST /v1/pdf

{
  "html":
    "<h1>Invoice</h1>"
}

Endpoints

Formats

PDF · PNG · WebP

Auth

Bearer

Returns

application/pdf

02Outputs — one API, 20 endpoints

/pdf

HTML → PDF

/screenshot

Full-page capture

/og

1200×630 social

/merge

Combine PDFs

Draft

/watermark

Stamp every page

And the rest of the toolkit

/pdf/formFill an AcroForm, flatten it so it can't be edited back

/pdf/protectAES-256 encryption, with printing and copying locked down

/pdf/compress50–85% smaller, losslessly — the pages render identically

/pdf/pagesSelect, reorder and rotate pages, or set metadata

/pdf/splitOne file per page

/pdf/infoPage count, sizes, and every fillable field

/batchUp to 20 renders as background jobs

/templatesSave HTML once, render by name with {{merge}} fields

/jobsPoll async renders, list them, mint signed URLs

/usageQuota, usage and limits for the account

Runs where Chrome can't

Vercel, Netlify edge and Lambda can't ship a 280 MB Chromium. Offload rendering to one call.

Real browser fidelity

Rendered on headless Chrome — flexbox, grid, web fonts, page breaks and print styles, exactly as designed.

Built to run hot

A warm browser pool with concurrency control and honest timeouts. No cold-start roulette.

Stop running a browser farm. Ship one API call and never think about PDF rendering again.

03 Interface

One request. Any document.

Bearer auth, JSON in, file bytes out. Idempotency keys, response caching, and a full OpenAPI spec — the boring parts, handled.

POST /api/v1/pdfcURL

curl https://rendral.com/api/v1/pdf \
  -H "Authorization: Bearer sk_live_…" \
  -H "Content-Type: application/json" \
  -d '{ "html": "<h1>Invoice</h1>" }' \
  -o invoice.pdf

04Live — render one now

Playground

input.html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8" />
    <style>
      * { font-family: -apple-system, Segoe UI, Roboto, sans-serif; color: #1b1a17; }
      body { margin: 0; padding: 48px; }
      .row { display: flex; justify-content: space-between; align-items: flex-start; }
      h1 { font-size: 28px; margin: 0; letter-spacing: -0.5px; }
      .muted { color: #77746c; }
      .badge { background: #1b1a17; color: #fff; padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
      table { width: 100%; border-collapse: collapse; margin-top: 32px; }
      th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: #77746c; border-bottom: 2px solid #e5e3dc; padding: 10px 0; }
      td { padding: 14px 0; border-bottom: 1px solid #efeee9; }
      .right { text-align: right; }
      .total { font-size: 20px; font-weight: 700; }
    </style>
  </head>
  <body>
    <div class="row">
      <div>
        <h1>Invoice #1042</h1>
        <p class="muted">Issued 21 Jul 2026 &middot; Due 04 Aug 2026</p>
      </div>
      <span class="badge">PAID</span>
    </div>
    <table>
      <thead><tr><th>Item</th><th class="right">Qty</th><th class="right">Amount</th></tr></thead>
      <tbody>
        <tr><td>Rendral — Growth plan</td><td class="right">1</td><td class="right">$49.00</td></tr>
        <tr><td>Overage — 8,200 documents</td><td class="right">8,200</td><td class="right">$16.40</td></tr>
      </tbody>
    </table>
    <div class="row" style="margin-top:28px">
      <span></span>
      <span class="total">Total &nbsp; $65.40</span>
    </div>
  </body>
</html>

output.pdf

Your PDF renders here

05Pricing — per document, not per seat

Free

per month

500 documents / mo

Everything in the API. Hard cap — no surprise bills.

Start →

Starter

$19

per month

5,000 documents / mo

Overage billed at 0.6¢ / doc. Templates and async jobs.

Start →

Growth

Business

$199

per month

100,000 documents / mo

Priority rendering and an SLA. Overage at 0.3¢ / doc.

Start →

Full pricing details — overage rates, what counts as a document, and how to change plans.

HTML in.Pixel-perfectPDFs out.

Runs where Chrome can't

Real browser fidelity

Built to run hot

One request. Any document.

Free

Starter

Growth

Business

HTML in.
Pixel-perfect
PDFs out.