Use case
Invoice PDF API for SaaS and finance workflows
Automatically generate branded invoice PDFs from HTML templates and deliver them to users at signup, renewal, or monthly billing cycles.
Why use an API for invoice PDFs
- Standardized invoice layout and branding across all customers.
- Less manual work for finance and support teams.
- Reliable generation with async processing for high-volume jobs.
Sample payload
{
"source": "<html><body><h1>Invoice #1024</h1><p>Total: $149.00</p></body></html>",
"margin": "12mm",
"print_background": true,
"filename": "invoice-1024.pdf"
}Recommended workflow
- Render invoice HTML using your billing data.
- Submit conversion request from backend with your API key.
- Store the PDF and email a download link to the customer.