Automated invoice generation

Turn every sale into a signed, branded, archived PDF.

Invoicing pipelines break in ugly ways — unsigned PDFs, missing watermarks, oversized attachments that bounce off Gmail. SnapPDF handles the last mile.

Operations used

Example workflow

1. 01
   Stripe webhook → invoice.paid

   Trigger on payment success.
2. 02
   Generate invoice body

   Your existing HTML→PDF pipeline or template engine.
3. 03
   SnapPDF merge

   Combine body + terms + receipt.
4. 04
   SnapPDF watermark

   Stamp PAID across page 1.
5. 05
   SnapPDF compress

   Drop to ~500KB.
6. 06
   Email to customer

   Via Resend, SendGrid, or SES.

Code

// On invoice.paid webhook:
const body = await generateInvoicePdf(order);
const { pdf } = await snap.pdf.merge({ files: [body, termsPdf, receiptPdf] });
const stamped = await snap.pdf.watermark({
  file: pdf, kind: 'text', text: 'PAID', position: 'diagonal', opacity: 0.2,
});
const small = await snap.pdf.compress({ file: stamped.pdf, level: 'high' });
await resend.emails.send({ to: order.email, attachments: [{ content: small.pdf }] });

Best for

Other use cases