business template

Invoice Image Generator API

Render full invoices as PNG images for emails, dashboards, and exports

Get started free Read the Invoice Image API reference

Invoice Image template preview, a business image generated by the html2img API

Use cases for the Invoice Image Generator API

The Invoice Image template is the shortest path to a working invoice image generator api from your stack. Send a small JSON payload, get back a tested PNG that fits your brand. No browser, no headless Chrome wrangling, no design tooling on your side.

Common reasons people reach for this template:

Attaching invoices to confirmation emails
Embedding invoices in customer dashboards
Generating invoice previews for accounting tools

How it works

Send a JSON payload

POST to the template endpoint with the values you want rendered. Authenticate with your API key.

We render the image

The template is rendered server-side as a 1200x630 PNG (or whatever dimensions the template defines).

You get back a URL

The response includes a CDN URL for the PNG. Cache it, embed it, attach it to a tweet, anything you need.

Quick example

A single cURL call to render a Invoice Image as a PNG:

curl -X POST https://app.html2img.com/api/v1/templates/invoice-image \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"invoice_number":"INV-2026-0042","issue_date":"Apr 30, 2026","due_date":"May 30, 2026","business_name":"Northwind Studio Ltd","business_address":"12 Bishopsgate\nLondon EC2N 4AT\nUnited Kingdom","business_email":"[email protected]","client_name":"Acme Corp","client_address":"548 Market Street\nSan Francisco, CA 94104\nUSA","client_email":"[email protected]","items":[{"description":"Brand identity design","quantity":"1","unit_price":"$4,800.00","amount":"$4,800.00"},{"description":"Landing page build (8 sections)","quantity":"1","unit_price":"$3,200.00","amount":"$3,200.00"},{"description":"Photography retainer","quantity":"6","unit_price":"$420.00","amount":"$2,520.00"}],"subtotal":"$10,520.00","tax_label":"VAT (20%)","tax_amount":"$2,104.00","total":"$12,624.00","notes":"Payment due within 30 days. Wire transfer details on file.","accent_color":"#0F766E"}'

For the full PHP, Node and Python equivalents, plus every input the template accepts, see the Invoice Image API reference. Setting up your key is covered in the authentication guide.

Inputs at a glance

A quick summary of what the Invoice Image template accepts. The full reference, including example values and array shapes, is in the docs.

Name	Type	Required
invoice_number	string	Required
issue_date	string	Optional
due_date	string	Optional
business_name	string	Required
business_address	string	Optional
business_email	string	Optional
client_name	string	Required
client_address	string	Optional
client_email	string	Optional
items	array	Required
subtotal	string	Optional
tax_label	string	Optional
tax_amount	string	Optional
total	string	Required
notes	string	Optional
logo_url	url	Optional
accent_color	string	Optional