n8n-nodes-polydoc

An n8n community node for PolyDoc - a REST API that converts HTML or URLs to PDF, captures screenshots, and generates EU-compliant e-invoices (Factur-X / ZUGFeRD hybrid PDF/A-3).

One node, three operations:

• HTML/URL to PDF - layout, margins, page format, page ranges, bookmarks, accessible/tagged PDFs.
• Capture Screenshot - PNG / JPEG / WebP, full page, viewport and device-pixel-ratio control.
• Generate E-Invoice - Factur-X or ZUGFeRD, profiles from minimum to extended.

Content can come from a URL, an inline HTML string, or a saved template (with Liquid templateData). The result is returned as binary data by default, or uploaded to your cloud storage (presigned URL) or delivered to a webhook.

Installation

In n8n: Settings → Community Nodes → Install, then enter n8n-nodes-polydoc.

Self-hosted (manual):

npm install n8n-nodes-polydoc

Credentials

Create a PolyDoc API credential with an API key from dashboard.polydoc.tech (API Keys). Toggle Sandbox to test with sandbox quota (watermarked output). The key is sent as Authorization: Bearer <key>.

Anything not in the UI?

Every operation has an Additional Fields → Advanced (JSON) escape hatch that is deep-merged into the request body, so any API capability not surfaced as a control (e.g. pdf.watermark, pdf.pdfa, pdf.encryption, render.*, request.*) is still reachable. See the full request schema at docs.polydoc.tech.

Development

npm install
npm run build      # tsc + copy icons into dist/
npm run lint       # eslint-plugin-n8n-nodes-base
npm test           # unit tests (request body builder)

Live smoke test against the real API (uses sandbox quota):

POLYDOC_API_KEY=api_xxx POLYDOC_TEMPLATE_ID=jlE-whg npm run test:integration

License

MIT