Template + JSON → PDF.
One POST. Rendered in the EU.
DocPuffin is a document-generation API for invoices, receipts and business docs. Send a template id and a JSON payload, get back a pixel-stable PDF — rendered in Frankfurt, with invoice schemas field-mapped for Fortnox and Visma workflows.
Preorder credits for $39 Render a PDF right now
DocPuffin is pre-launch. The render box below calls the same Frankfurt-hosted function the API will expose — it's real, try it. Every preorder is refundable.
Live render demo
Pick a template, edit the JSON, hit render. This is a real API call, not a mock — your payload is processed in memory and never stored.
Switching templates resets the JSON below.
Rendered in the EU
Rendering runs in Frankfurt (fra1). Payloads are processed in memory for the render and never stored.
Fortnox/Visma-ready schemas
Invoice templates use field names mapped to common Fortnox and Visma workflows — org numbers, VAT rates, payment references. Field mappings are a formatting convenience, not legal, tax, or compliance advice or guarantees.
Credits, not a treadmill
Founding credit packs instead of a subscription meter. Buy a pack, render at your own pace, refill at your locked founding rate.
- 5,000 render credits at launch
- Locked founding rate on refills
- invoice-eu + receipt templates at launch, more on request
- Priority on template requests from founding buyers
- API key delivered by email at launch
Every preorder is fully refundable any time before launch — one email, no
questions asked.
Expected delivery: within 4–6 weeks after the 14-day window closes.
Payments handled securely by Stripe.
Questions, answered straight
When do I get my API key?
Expected delivery: within 4–6 weeks after the 14-day window closes. Your key and docs arrive by email the day we launch.
What if it slips, or I change my mind?
One email, full refund, no questions asked — any time before launch. That's the whole policy.
Is the demo above the real engine?
Yes. The render box calls the same Frankfurt-hosted render function the API will expose, with the same templates and the same JSON schema.
Do the templates guarantee compliance?
No. Templates are field-mapped conveniences for common Fortnox/Visma-style workflows. They are not legal, tax, or compliance advice, and DocPuffin makes no compliance guarantees.