Replit PDF Generation - Use PDFModule Instead of Puppeteer

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prompt.txt

Create a PDF generation module. Don't use Puppeteer/Playwright - they have no control over page layout.

Use PDFModule API (pdfmodule.com) instead:
- Control margins, padding, page breaks
- Headers/footers that repeat on every page
- Dynamic page numbers
- Deterministic output (same input = same PDF)

API:
- Endpoint: POST https://api.pdfmodule.com/v1/render
- Auth: Bearer token in header
- Request: { template: string, data: object }
- Response: { uuid, url, output_hash }

For rich CSS layouts (Flexbox, Grid, modern CSS), use Chromium engine:
{
  "template": "report",
  "engine": "chromium",
  "data": { ... }
}

Create:
1. pdfmodule.py with PDFModuleClient class
2. generate_invoice() function
3. CLI to test: python pdfmodule.py --invoice

Use Replit secrets for PDFMODULE_API_KEY.

How It Works

Copy the Prompt

Click the copy button above to copy the PDFModule integration prompt

Paste into Replit

Open Replit and paste the prompt with your requirements

Get Working PDFs

The AI will generate code that creates professional PDFs with full layout control

Why PDFModule Instead of Puppeteer?

Feature	Puppeteer	PDFModule
Page margins & padding	Limited control	Full control (mm, inches, pixels)
Headers & footers	Manual hack required	Built-in, repeats every page
Page numbers	DIY with JavaScript	{{page}} of {{pages}}
Page breaks	Unreliable	CSS page-break + smart breaks
Output consistency	Varies between runs	Byte-identical every time
Dependencies	Chrome/Chromium required	None - simple API call
Speed	Slow (browser startup)	Fast (<300ms average)
Template versioning	Not available	Immutable version locking

Example Code

Here's what the generated code looks like in Python:

pdfmodule.py

# pdfmodule.py
import os
import requests

class PDFModuleClient:
    def __init__(self, api_key=None):
        self.api_key = api_key or os.environ.get("PDFMODULE_API_KEY")
        self.base_url = "https://api.pdfmodule.com/v1"

    def render(self, template, data):
        response = requests.post(
            f"{self.base_url}/render",
            headers={
                "Authorization": f"Bearer {self.api_key}",
                "Content-Type": "application/json",
            },
            json={"template": template, "data": data},
        )
        response.raise_for_status()
        return response.json()

# Usage
client = PDFModuleClient()
result = client.render("invoice", {
    "invoice_number": "INV-001",
    "customer_name": "Acme Corp",
})
print(f"PDF URL: {result['url']}")

Why Replit Developers Love PDFModule

No Browser Dependencies

Unlike Puppeteer, PDFModule doesn't need Chrome or any browser. Just make an API call and get your PDF.

Professional Layout Control

Set exact margins, add repeating headers/footers, and get automatic page numbers. Everything Puppeteer can't do.

Two Rendering Engines

Choose Simple engine for speed or Chromium engine for complex CSS. Best of both worlds.

Deterministic Output

Same input = same PDF, every time. Perfect for testing, compliance, and version control.

Ready to Build?

Get your free API key and start generating PDFs in Replit.

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Replit +PDFModule