Invoice PDF API
Generate invoice PDFs from billing data without maintaining custom document infrastructure. One template, any customer, any billing run.
Why this page exists
Invoice PDFs sit at the intersection of engineering, finance, and customer communication. They need accurate line items, tax handling, brand consistency, and dependable delivery. Manual exports and copy-paste workflows do not scale well.
PDFox gives you an invoice PDF API built around reusable templates. Pull data from Stripe, your CRM, or a CSV export, post it to PDFox, and return signed PDF URLs without building a rendering service yourself.
Explore next
Compare monthly PDF limits, webhooks, API access, and batch-friendly tiers.
Open page DocsReview authentication, generation, polling, downloads, and MCP setup.
Open page Use casesSee invoices, payslips, contracts, and delivery workflows built on PDFox.
Open page AISee how PDFox fits Claude, ChatGPT, and internal copilot workflows.
Open pageWhat PDFox gives you
The important part is not just producing a PDF. It is producing the right invoice, every time, with a workflow finance can trust.
Publish invoice layouts once and reuse them across customer accounts, currencies, or entity-specific variants.
Render nested arrays of line items, optional VAT or GST sections, and region-specific payment terms using structured data.
Queue invoice generation without blocking your app, then use job polling or webhooks to continue downstream delivery.
Return time-limited download links for invoices so you can attach them to emails, dashboards, or downstream automations.
REST API example
curl -X POST https://api.pdf-fox.com/generate \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"templateId": "tpl_invoice_standard",
"data": {
"invoice": {
"number": "INV-2026-0891",
"date": "2026-05-26",
"currency": "GBP"
},
"client": {
"name": "Meridian Software Ltd"
},
"items": [
{ "description": "Platform licence", "qty": 1, "unit_price": 1200 },
{ "description": "Onboarding session", "qty": 2, "unit_price": 350 }
]
}
}'PDFox queues the job and returns a jobId immediately. Poll the job or use a webhook to retrieve the completed invoice PDF URL.
How teams use it
A strong invoice API should fit existing billing systems and reduce document handling work, not add a second workflow beside them.
If invoice data is already in Stripe, your ERP, or a CSV export, PDFox turns that existing source into production-ready PDFs.
Template-first generation is easier to maintain when the finance team wants new tax blocks, payment notes, or entity-specific branding.
PDFox works well for recurring invoice runs where queueing, tracking, and consistent delivery matter as much as the PDF itself.
Use PDFox to turn billing data into invoice PDFs with a workflow finance and engineering can both live with.