Business

Invoice PDF Template

Generate professional, pixel-perfect invoices via API. Dynamic tables, client logos, tax calculations. Perfect for e-commerce, SaaS billing, and accounting automation.

11 customizable variables

Start Using This Template View API Documentation

How It Works

1. Get Your API Key

2. Send JSON Payload

Make a POST request with your template variables as JSON.

3. Receive PDF URL

Get a direct URL to your generated PDF document.

Template Variables

Customize your PDF by providing values for these variables in your API request.

Variable Name	Type	Description	Default Value
{{invoice_number}}	text	Invoice number	INV-001
{{date}}	date	Invoice date	-
{{company_name}}	text	Your company name	My Company
{{company_address}}	text	Your company address	123 Main St
{{client_name}}	text	Client name	Client Name
{{client_address}}	text	Client address	456 Client St
{{item_description}}	text	Item description	Service
{{item_qty}}	number	Quantity	1
{{item_price}}	text	Unit price	$100
{{item_total}}	text	Item total	$100
{{total}}	text	Total amount	$100

Code Examples

Copy and paste these examples to start generating PDFs with this template.

curl -X POST 'https://api.pdf-sign.com/functions/v1/generate-pdf-preview' \
  -H 'Content-Type: application/json' \
  -H 'x-api-key: pdfsign_YOUR_API_KEY' \
  -d '{
    "templateId": "f86e0233-39bd-4884-80ca-c5da4774a3db",
    "variables": {
      "invoice_number": "INV-001",
      "date": "your_date",
      "company_name": "My Company",
      "company_address": "123 Main St",
      "client_name": "Client Name",
      "client_address": "456 Client St",
      "item_description": "Service",
      "item_qty": "1",
      "item_price": "$100",
      "item_total": "$100",
      "total": "$100"
    }
  }'

Example JSON Payload

Here's a complete example of the variables object you'll send in your API request.

{
  "templateId": "f86e0233-39bd-4884-80ca-c5da4774a3db",
  "variables": {
    "invoice_number": "INV-001",
    "date": "your_date",
    "company_name": "My Company",
    "company_address": "123 Main St",
    "client_name": "Client Name",
    "client_address": "456 Client St",
    "item_description": "Service",
    "item_qty": "1",
    "item_price": "$100",
    "item_total": "$100",
    "total": "$100"
  }
}

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Ready to Generate Invoices?

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