Kreyo PDF

Generate invoices and documents as PDFs — no Puppeteer, no headless Chrome, no infra.

Send HTML, Markdown, or JSON data to a template. Get a pixel-perfect PDF back in under a second.

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Free tier — 100 renders/month, no credit card required.

See it in action

Send JSON to a template. Your invoice renders instantly.

POST /pdf/v1/render/template


  "template": "invoice-modern",
  "logo": "data:image/png;base64,...",
  "data": 
    "invoice_number": "2026-042",
    "date": "2026-03-15",
    "issuer": 
      "name": "Acme Studio S.L.",
      "nif": "B12345678",
      "address": "Calle Gran Vía 42",
      "city": "Madrid"
    ,
    "client": 
      "name": "TechCorp S.A.",
      "nif": "A87654321",
      "city": "Barcelona"
    ,
    "items": [
       "description": "Desarrollo web",
        "qty": 1, "unit_price": 2400 ,
       "description": "Diseño UI/UX",
        "qty": 1, "unit_price": 600 ,
       "description": "Hosting anual",
        "qty": 1, "unit_price": 120 
    ],
    "tax_rate": 21,
    "withholding_rate": 15

→

factura_generada.pdf

Acme Studio S.L.

NIF: B12345678

Calle Gran Vía 42, 28013 Madrid

hola@acme.studio

FACTURA

Nº 2026-042

Fecha: 15/03/2026

Vencimiento: 15/04/2026

EMISOR

Acme Studio S.L.

NIF: B12345678 · Madrid

CLIENTE

TechCorp S.A.

NIF: A87654321 · Barcelona

Descripción	Cant.	P. Unit.	Total
Desarrollo web — Sprint 1	1	2.400,00 €	2.400,00 €
Diseño UI/UX — Maquetación responsive	1	600,00 €	600,00 €
Integración API pasarela de pago	1	480,00 €	480,00 €
Hosting anual — Plan Business	1	120,00 €	120,00 €
Dominio .es — Renovación 2 años	1	28,00 €	28,00 €
Certificado SSL — Emitido e instalado	1	0,00 €	0,00 €

Base imponible3.628,00 €

IVA 21%761,88 €

IRPF -15%-544,20 €

TOTAL3.845,68 €

Condiciones de pago: Transferencia bancaria a 30 días desde la fecha de emisión.

IBAN: ES91 2100 0418 4502 0005 1332

Esta factura cumple los requisitos del Reglamento de Facturación vigente (RD 1619/2012). Operación sujeta a IVA. Documento generado automáticamente por Kreyo PDF.

Try it free — no signup required

Building it yourself vs. using Kreyo

One HTTP request. No infrastructure to manage.

Building it yourself Before

Install and configure Puppeteer
Debug headless Chrome CSS rendering
Handle font loading and timeouts
Build and maintain a template system
Manage browser pool concurrency
Deal with cold starts and memory leaks
Scale the service with your app
Maintain it forever

Using Kreyo After

One HTTP request
Hosted, always-on Chromium
Pixel-perfect rendering, guaranteed
9 professional templates for invoices, services, reports & more
Pre-warmed browser pool, 30+ concurrent
Sub-second renders, no cold starts
Scales automatically with usage
We maintain it

Everything you need to generate documents

From raw HTML to ready-to-send invoices.

📄

Any HTML, perfect PDF

Send any HTML+CSS — Chromium renders it exactly as a browser would. No wkhtmltopdf quirks, no CSS hacks.

🧾

Invoices in 10 seconds, not 10 hours

9 professional templates for invoices, service billing, reports, receipts, quotes, and certificates. Send JSON + your logo (Starter/Pro) and get a branded, ready-to-send PDF.

📝

Docs and reports from Markdown

Convert Markdown to styled PDFs. Tables, code blocks, and headers render beautifully with GitHub-style themes.

🔗

Combine documents instantly

Upload up to 20 PDFs and get a single merged file. No libraries, no CLI tools.

⚡

Faster than your Puppeteer setup

Pre-warmed browser pool, sub-second template renders. No cold starts, no timeouts.

🔒

Security you don't have to build

External resources blocked by default. API keys hashed with SHA-256. Rate limiting on every endpoint. Idempotency support.

What developers build with Kreyo PDF

Plug it into your existing workflow in minutes.

SaaS Billing

Automatic invoice delivery

Stripe webhook → Kreyo renders invoice → email to customer.

E-commerce

Order documents on demand

Order confirmations, delivery notes, and receipts. One template, every order.

HR & Education

Certificates and records

Certificates, diplomas, training records. Pixel-perfect on every page.

Reports

Export to PDF — finally

Dashboard data → PDF. The "Export to PDF" button your users keep asking for.

One subscription. One API key.

Every Kreyo product runs on a single shared pool of operations — no separate plans per product.

Free

€0/mo

100 operations/month, all products

Shared pool across all products
5 req/min rate limit
No credit card required

Get started free