PrefillPDF
Integration • Workflow automation

n8n PDF Automation

Build flexible document pipelines with webhooks, HTTP requests, JavaScript logic, databases, and PrefillPDF.

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Extract JSON from PDF · PDF Template API · Applications use case
n8n is a strong fit for teams that want visual automation with developer-level flexibility. PrefillPDF can generate documents from JSON or turn incoming PDFs into structured JSON.
You can combine PrefillPDF with code nodes, conditional branches, databases, queues, storage, email, and internal APIs to create complete document-processing systems.

Common n8n workflows

Webhook PDF intake

Receive an uploaded PDF, extract structured JSON, validate the result, and store it in your database.

Application processing pipeline

Extract applicant data, run business logic, update a CRM, and generate a completed response PDF.

Automated report delivery

Query data on a schedule, generate a PDF report, and distribute it through email or storage.

How the integration works

1

Start with a trigger

Use a webhook, schedule, database event, form, email, or connected app.

2

Call PrefillPDF

Use the HTTP Request node to send template JSON or an existing PDF.

3

Transform the response

Use Set, Code, IF, Switch, and database nodes to validate and reshape returned data.

4

Finish the pipeline

Save, send, regenerate, approve, or route the document based on your workflow logic.

Example n8n HTTP request body

{
  "template_id": "your-template-id",
  "data": {
    "customer_name": "Jane Smith",
    "amount": 25000,
    "status": "Approved"
  }
}

Benefits of using PrefillPDF with n8n

Self-hosted or cloud workflow options
Custom JavaScript and conditional processing
Strong database and webhook support
Ideal for complete PDF processing pipelines

FAQ

Can n8n receive PrefillPDF JSON output?

Yes. The HTTP Request node can receive and expose the returned JSON to every later node.

Can I self-host the workflow?

Yes. n8n can be self-hosted while PrefillPDF remains the PDF generation and extraction service.

Can n8n process multiple PDF files?

Yes. Use item lists, loops, split-in-batches patterns, or queue-based workflows depending on volume.

Related integrations

Zapier
Connect Zapier to PrefillPDF to generate PDFs from templates or extract structured JSON from existing PDFs.
Make
Use Make scenarios to generate PDFs, extract JSON from PDFs, and connect document workflows to your business apps.
Google Sheets
Generate PDFs from spreadsheet rows or extract PDF data into Google Sheets using PrefillPDF and Apps Script.
Python
Use Python to generate PDFs from templates, extract structured JSON from PDFs, and automate document processing.

Build your n8n PDF workflow

Generate PDFs from structured data or extract structured JSON from existing documents with PrefillPDF.

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