SMALL API. BIG POSSIBILITIES.

Print-ready PDFs from HTML or JSON.

Send HTML, or a template and JSON data, and get back a print-ready PDF or image: invoices, receipts, certificates, reports and labels, printed by Chromium.

Get your free API key Explore the docs

100 free documents / monthNo credit card required

YOUR FIRST REQUESTREST / JSON

curl -X POST https://api-printmint.plxi.us/v1/pdf/render \
  -H "X-API-Key: sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
  "css": "body { font-family: Inter, Arial, sans-serif; padding: 20mm; } h1 { color: #10b981; }",
  "html": "<html><head><title>Hello</title></head><body><h1>Hello from Printmint</h1><p>This page was printed from HTML.</p></body></html>",
  "inline": true,
  "pdf": {
    "footer_html": "<div style=\"width:100%;font-size:8px;text-align:center\"><span class=\"pageNumber\"></span> / <span class=\"totalPages\"></span></div>",
    "margin": {
      "bottom": "15mm"
    },
    "page_size": "A4"
  }
}'

Less setup. More building.

One header, one request, useful results.

A complete toolkit
behind a simple API.

One REST call

Plain JSON responses

A workspace for your team

MADE FOR BUILDERS

Everything you need.
Nothing in your way.

A straightforward API, with the tools to take it from your first experiment to production.

Printed by Chromium

CSS, web fonts, @page rules, page breaks, and headers and footers with page numbers, as Chrome prints them.

Templates built in

Invoice, receipt, certificate, report and shipping label: send JSON, get a PDF. Or save your own Jinja templates.

Escaped and offline

Your data is escaped, so a name with <script> in it prints as text. Templates load nothing from the network.

Tools for AI agents

html_to_pdf, render_template_pdf and html_to_image work as MCP tools in Claude and other agents.

WHO IT’S FOR

Built for teams like yours.

SaaS billing

Turn every invoice and receipt into a PDF from the JSON your app already has, with the invoice template or your own.

Reports and exports

Print reports and statements with headers, footers and page numbers from the HTML your app renders.

AI agents and no-code tools

Call html_to_pdf over MCP, or the REST endpoint from any automation tool's HTTP step.

STRAIGHT TO THE GOOD PART

From idea to first request.

Full API reference

Create an account

Start free with your Plexsicity account.

Get your API key

Create a key in your dashboard.

Make something useful

Send JSON with an X-API-Key header.

POST/v1/pdf/render

Print HTML to a PDF, with page size, margins, headers and footers.

POST/v1/pdf/template

Fill in a template with JSON data and print it as a PDF.

SEE WHAT YOU CAN BUILD

Real requests. Useful responses.

Explore examples from the API’s actual operation catalog, then try them in your workspace.

WORKING EXAMPLE

pdf.render

Print HTML to a PDF, with page size, margins, headers and footers.

POST /v1/pdf/render

{
  "css": "body { font-family: Inter, Arial, sans-serif; padding: 20mm; } h1 { color: #10b981; }",
  "html": "<html><head><title>Hello</title></head><body><h1>Hello from Printmint</h1><p>This page was printed from HTML.</p></body></html>",
  "inline": true,
  "pdf": {
    "footer_html": "<div style=\"width:100%;font-size:8px;text-align:center\"><span class=\"pageNumber\"></span> / <span class=\"totalPages\"></span></div>",
    "margin": {
      "bottom": "15mm"
    },
    "page_size": "A4"
  }
}

See the example response

{
  "bytes": 18342,
  "content_type": "application/pdf",
  "credits": 1,
  "pages": 1,
  "pdf_base64": "JVBERi0xLjcKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29kZT4+..."
}

Try this example →

WORKING EXAMPLE

pdf.from_template

Fill in a template with JSON data and print it as a PDF.

POST /v1/pdf/template

{
  "data": {
    "currency": "USD",
    "customer": {
      "address": [
        "400 Market Street, Suite 12",
        "San Francisco, CA 94105"
      ],
      "email": "[email protected]",
      "name": "Acme Robotics Inc."
    },
    "due": "2026-11-30",
    "issued": "2026-10-31",
    "items": [
      {
        "description": "Website redesign: discovery and wireframes",
        "quantity": 1,
        "unit_price": 2400
      },
      {
        "description": "Design system components",
        "quantity": 12,
        "unit_price": 150
      },
      {
        "description": "Hosting, October",
        "quantity": 1,
        "unit_price": 49.5
      }
    ],
    "notes": "Thank you for your business. Please pay by bank transfer within 30 days and quote the invoice number.",
    "number": "INV-2026-0142",
    "payment": [
      {
        "label": "Bank",
        "value": "First National Bank"
      },
      {
        "label": "Account name",
        "value": "Northwind Studio LLC"
      },
      {
        "label": "Account",
        "value": "1234 5678"
      },
      {
        "label": "Routing",
        "value": "021000021"
      }
    ],
    "seller": {
      "address": [
        "18 Harbour Street",
        "Portland, OR 97204",
        "United States"
      ],
      "email": "[email protected]",
      "name": "Northwind Studio",
      "tax_id": "12-3456789"
    },
    "tax_rate": 0.0875
  },
  "inline": true,
  "template": "invoice"
}

See the example response

{
  "bytes": 41207,
  "content_type": "application/pdf",
  "credits": 1,
  "pages": 1,
  "pdf_base64": "JVBERi0xLjcKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29kZT4+...",
  "template": "invoice"
}

Try this example →

ROOM TO GROW

Start small. Build big.

Simple, usage-based pricing.
Start free, upgrade when you need more.

Free

$0/mo

100 documents / mo

✓100 documents a month
✓10 documents a minute
✓1 at a time
✓Every built-in template

Get started

Questions, answered.

What does one document cost?

One credit for each PDF or image, up to 50 pages, and one for each merge. Listing, saving and deleting templates is free, and a call that fails is never charged.

How do I get the PDF back?

Each response carries the PDF as base64 (pdf_base64) or as a download link (file). Send "inline": true to always get it in the response, up to 5 MB.

Can I use my own fonts and images?

Yes. Link them from your HTML, with base_url for relative paths, or embed them as data: URLs. Templates print offline by default, so give them images as data: URLs or set offline to false.

Is my data kept?

The HTML and data you send are used to print the document and aren't stored. Templates you save are kept until you delete them, and stored files are deleted after a few days.

Can a template run code?

No. Templates use Jinja syntax with no file, network or include access, every value is escaped, and the page's own scripts run in a sandboxed Chromium that can't reach private networks.

YOUR NEXT PROJECT STARTS HERE

A little less busywork.
A lot more possibility.

Get your free key and make your first request with Printmint.

Let's build something