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.
Template + JSON in, PDF out
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.
Built for boring, load-bearing documents
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.
Founding credit pack — $39, once.
Every preorder is fully refundable any time before launch — one email, no questions asked.
Preorder credits for $39