Generate EN 16931, XRechnung, and Factur-X e-invoices with PDF Generator API

by Marián Današ ✓ · 28 views · created 2026-09-16 · Invoice Processing

What this workflow does

This workflow has 14 nodes and runs manually, when you click “Execute workflow” (plus 1 other trigger). It uses only n8n's built-in nodes. It also calls us1.pdfgeneratorapi.com over HTTP.

How it runs

Trigger: Manually, when you click “Execute workflow” (plus 1 other trigger).

1. Prepare Sample Invoice (Edit Fields (Set)): sets or maps fields
2. Fetch E-Invoice Schema (HTTP Request): calls us1.pdfgeneratorapi.com
3. Prepare Webhook Invoice (Edit Fields (Set)): sets or maps fields
4. Set Invoice Parameters (Edit Fields (Set)): sets 3 fields: template_id, default_format, facturx_profile
5. Map to UBL Invoice Format (Code): runs custom JavaScript code
6. Route by Invoice Format (Switch): routes items into 3 branches
7. Post to Factur-X Endpoint (HTTP Request): calls us1.pdfgeneratorapi.com (POST)
8. Post to XRechnung Endpoint (HTTP Request): calls us1.pdfgeneratorapi.com (POST)
9. Post to EN 16931 Endpoint (HTTP Request): calls us1.pdfgeneratorapi.com (POST)
10. Parse API Response (Code): runs custom JavaScript code

…plus 1 more step. See the full node list below.

HTTP calls to: us1.pdfgeneratorapi.com

Before you upgrade to n8n 3.0

Nodes used (8)

• Manual Triggern8n-nodes-base.manualTrigger
• Webhookn8n-nodes-base.webhook
• Edit Fields (Set)n8n-nodes-base.set
• HTTP Requestn8n-nodes-base.httpRequest
• Coden8n-nodes-base.code
• Switchn8n-nodes-base.switch
• Convert to Filen8n-nodes-base.convertToFile
• No Operation, do nothingn8n-nodes-base.noOp

From the author

Quick overview This workflow converts invoice JSON into compliant e-invoices (EN 16931, XRechnung, or Factur-X) by mapping your data to Peppol BIS Billing 3.0 UBL and generating the final XML or PDF/A-3 using PDF Generator API. How it works 1. Triggers either…

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