A free invoice template with line items, tax, and payment terms — fill it in your browser and download a polished PDF the same day.
Bill clients without rebuilding your layout every time. This free invoice template gives freelancers, agencies, and small businesses a professional billing format you fill in minutes and download as a print-ready PDF — no spreadsheet formulas, no design work:
{{Client_Name}}, {{Line_Items}}, and {{Total}} placeholders are filled from your data and a finished PDF comes back in seconds. See the API documentation.Send JSON data via a single API call to fill this invoice template. Works with any programming language or automation tool.
# Fill invoice with billing data curl -X POST https://api.docuqueue.com/api/v1/templates/invoice/fill \ -H "api-key: YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "invoice_number": "INV-2026-001", "client_name": "Acme Corp", "line_items": [ {"description": "Web Design", "amount": "$3,000"}, {"description": "SEO Setup", "amount": "$1,500"} ], "total": "$4,500", "due_date": "February 15, 2026" }' # Response: PDF file ready for download