Generate a PDF in the live editor

Edit JSON data and a Typst template, then generate a PDF.

Open the live editor

Live editor

Choose a template

7 templates available

Current: business/catalogue/v1 Loading a template replaces template.typ and data.json.

Typst template

The Typst template is rendered with the JSON data. PDFs from the public demo include a DEMO stamp.

DEMO stamp enabled

#import "default-data.typ": default-data

#let data = if "data" in sys.inputs { json(bytes(sys.inputs.data)) } else { default-data }
#let catalogue = data.at("catalogue", default: (:))
#let supplier = data.at("supplier", default: (:))
#let products = data.at("products", default: ())
#let is-draft = data.at("isDraft", default: false)

#let category-assets = (
  controls: "assets/category-controls.png",
  sensing: "assets/category-sensing.png",
  networking: "assets/category-networking.png",
  power: "assets/category-power.png",
  cabinet: "assets/category-cabinet.png",
  cabling: "assets/category-cabling.png",
  drives: "assets/category-drives.png",
  services: "assets/category-services.png",
)

#let product-visual(product) = {
  let category = product.at("category", default: "")
  let asset = category-assets.at(lower(category), default: none)
  let label = if category == "" { "NO IMAGE" } else { category }

  block(
    width: 26mm,
    height: 26mm,
    fill: rgb("#eef4f1"),
    radius: 2pt,
    clip: true,
  )[
    #if asset == none {
      align(center + horizon, text(size: 7pt, fill: rgb("#66736d"), weight: "bold", label))
    } else {
      image(
        asset,
        width: 100%,
        height: 100%,
        fit: "cover",
        alt: "Representative illustration for " + category,
      )
    }
  ]
}

#set page(
  paper: "a4",
  margin: (top: 16mm, bottom: 16mm, left: 14mm, right: 14mm),
  background: if is-draft {
    place(center + horizon, rotate(45deg, text(120pt, fill: rgb("#d7d7d7").transparentize(45%), weight: "bold")[DEMO]))
  },
  footer: context align(right)[#text(size: 8pt, fill: rgb("#66736d"))[#catalogue.at("edition", default: "") - Page #counter(page).display()]],
)
#set text(font: "Libertinus Sans", size: 9pt, fill: rgb("#17211d"))

#block(fill: rgb("#17211d"), inset: 16pt, radius: 3pt)[
  #text(fill: rgb("#9fd1b8"), size: 9pt, weight: "bold")[APPROVED BUYING CATALOGUE]
  #v(2mm)
  #text(fill: white, size: 30pt, weight: "bold")[#catalogue.at("title", default: "Catalogue")]
  #v(2mm)
  #text(fill: rgb("#d6e7df"))[
    #(catalogue.at("edition", default: "") + " / " + catalogue.at("owner", default: ""))
  ]
]

#v(7mm)
#grid(columns: (1fr, auto), align: (left, right), [
  Supplier: #supplier.at("name", default: "")
  #linebreak()
  Contact: #supplier.at("email", default: "")
], [
  #text(weight: "bold")[#supplier.at("terms", default: "")]
])

#v(7mm)
#grid(
  columns: (1fr, 1fr),
  gutter: 4mm,
  ..products.map(product => block(
    breakable: false,
    stroke: 0.45pt + rgb("#dbe3df"),
    inset: 8pt,
    radius: 3pt,
  )[
    #text(size: 8pt, fill: rgb("#22664b"), weight: "bold")[#product.at("category", default: "")]
    #h(1fr)
    #text(size: 8pt, fill: rgb("#66736d"))[#product.at("sku", default: "")]
    #v(2mm)
    #grid(
      columns: (26mm, 1fr),
      gutter: 3mm,
      align: (center, top),
      product-visual(product),
      [
        #text(size: 12pt, weight: "bold")[#product.at("name", default: "")]
        #v(1mm)
        #text(size: 8.5pt, fill: rgb("#4f5d57"))[#product.at("description", default: "")]
      ],
    )
    #v(3mm)
    #grid(columns: (1fr, auto), [
      Lead time: #product.at("leadTime", default: "")
    ], [
      #text(weight: "bold")[#product.at("price", default: "") #catalogue.at("currency", default: "EUR")]
    ])
  ])
)

JSON data

The JSON data is sent to the render API. Changes appear in the PDF.

{
  "catalogue": {
    "currency": "EUR",
    "edition": "Q3 2026",
    "owner": "Sternwerk Musterbetrieb GmbH  – Demo-Einkauf",
    "title": "Industrial Automation Catalogue"
  },
  "isDraft": false,
  "products": [
    {
      "category": "Controls",
      "description": "Compact controller for machine-side orchestration, Modbus and OPC UA ready.",
      "leadTime": "14 days",
      "name": "Edge controller 4IO",
      "price": "690.00",
      "sku": "DEMO-SKU-CTRL-EDGE-4"
    },
    {
      "category": "Controls",
      "description": "Expanded I/O controller with dual network uplinks and local buffering.",
      "leadTime": "14 days",
      "name": "Edge controller 8IO",
      "price": "980.00",
      "sku": "DEMO-SKU-CTRL-EDGE-8"
    },
    {
      "category": "Controls",
      "description": "Dual-channel safety relay for guard doors and emergency stops.",
      "leadTime": "21 days",
      "name": "Safety relay module",
      "price": "340.00",
      "sku": "DEMO-SKU-CTRL-SAFE-2"
    },
    {
      "category": "Sensing",
      "description": "Magnetic vibration sensor with trend-ready RMS and peak metrics.",
      "leadTime": "10 days",
      "name": "Vibration sensor",
      "price": "185.00",
      "sku": "DEMO-SKU-SNS-VIB-M"
    },
    {
      "category": "Sensing",
      "description": "Rugged temperature probe for washdown environments.",
      "leadTime": "7 days",
      "name": "Temperature probe IP67",
      "price": "96.00",
      "sku": "DEMO-SKU-SNS-TMP-IP67"
    },
    {
      "category": "Sensing",
      "description": "Stainless transmitter with M12 connector and factory calibration.",
      "leadTime": "12 days",
      "name": "Pressure transmitter 16 bar",
      "price": "225.00",
      "sku": "DEMO-SKU-SNS-PRS-16"
    },
    {
      "category": "Networking",
      "description": "DIN-rail managed switch with redundant power input.",
      "leadTime": "14 days",
      "name": "Industrial switch 8-port",
      "price": "540.00",
      "sku": "DEMO-SKU-NET-SW-8P"
    },
    {
      "category": "Networking",
      "description": "Managed switch for production cells with VLAN profiles.",
      "leadTime": "21 days",
      "name": "Industrial switch 16-port",
      "price": "890.00",
      "sku": "DEMO-SKU-NET-SW-16P"
    },
    {
      "category": "Networking",
      "description": "Industrial temperature SFP+ module for backbone links.",
      "leadTime": "10 days",
      "name": "10G optical module",
      "price": "120.00",
      "sku": "DEMO-SKU-NET-SFP-10G"
    },
    {
      "category": "Power",
      "description": "Compact DIN-rail power supply with status relay.",
      "leadTime": "7 days",
      "name": "24V PSU 10A",
      "price": "160.00",
      "sku": "DEMO-SKU-PWR-24-10"
    },
    {
      "category": "Power",
      "description": "High-load power supply for cabinet modernization projects.",
      "leadTime": "14 days",
      "name": "24V PSU 20A",
      "price": "260.00",
      "sku": "DEMO-SKU-PWR-24-20"
    },
    {
      "category": "Power",
      "description": "UPS buffer module for controlled PLC shutdown.",
      "leadTime": "21 days",
      "name": "24V buffer module",
      "price": "390.00",
      "sku": "DEMO-SKU-PWR-UPS-24"
    },
    {
      "category": "Cabinet",
      "description": "Powder-coated industrial cabinet with mounting plate and plinth.",
      "leadTime": "28 days",
      "name": "Control cabinet 600x2000",
      "price": "1,480.00",
      "sku": "DEMO-SKU-CAB-600-2000"
    },
    {
      "category": "Cabinet",
      "description": "Wide cabinet for drive and network retrofits.",
      "leadTime": "28 days",
      "name": "Control cabinet 800x2000",
      "price": "1,760.00",
      "sku": "DEMO-SKU-CAB-800-2000"
    },
    {
      "category": "Cabinet",
      "description": "Thermostat-ready cabinet fan with replaceable filter mat.",
      "leadTime": "14 days",
      "name": "Filter fan IP54",
      "price": "145.00",
      "sku": "DEMO-SKU-CAB-FAN-IP54"
    },
    {
      "category": "Cabling",
      "description": "Shielded M12 cable for sensor installations.",
      "leadTime": "5 days",
      "name": "M12 sensor cable 2m",
      "price": "18.00",
      "sku": "DEMO-SKU-CBL-M12-02"
    },
    {
      "category": "Cabling",
      "description": "Shielded M12 cable for longer production-cell runs.",
      "leadTime": "5 days",
      "name": "M12 sensor cable 5m",
      "price": "26.00",
      "sku": "DEMO-SKU-CBL-M12-05"
    },
    {
      "category": "Cabling",
      "description": "Oil-resistant Ethernet cable, cut to length, tested and labeled.",
      "leadTime": "7 days",
      "name": "Industrial Ethernet cable",
      "price": "4.60/m",
      "sku": "DEMO-SKU-CBL-ETH-IND"
    },
    {
      "category": "Drives",
      "description": "Compact drive for conveyor and pump applications.",
      "leadTime": "21 days",
      "name": "VFD 0.75 kW",
      "price": "410.00",
      "sku": "DEMO-SKU-DRV-0K75"
    },
    {
      "category": "Drives",
      "description": "General-purpose drive with STO and fieldbus option slot.",
      "leadTime": "21 days",
      "name": "VFD 2.2 kW",
      "price": "690.00",
      "sku": "DEMO-SKU-DRV-2K2"
    },
    {
      "category": "Drives",
      "description": "Heavy-duty drive for high-inertia machinery.",
      "leadTime": "28 days",
      "name": "VFD 7.5 kW",
      "price": "1,540.00",
      "sku": "DEMO-SKU-DRV-7K5"
    },
    {
      "category": "Services",
      "description": "Inspection report with photos, wiring checks, and sign-off evidence.",
      "leadTime": "10 days",
      "name": "Panel QA report",
      "price": "490.00",
      "sku": "DEMO-SKU-SVC-PANEL-QA"
    },
    {
      "category": "Services",
      "description": "Factory acceptance test over video with recorded checklist.",
      "leadTime": "10 days",
      "name": "Remote FAT session",
      "price": "1,200.00",
      "sku": "DEMO-SKU-SVC-FAT-REMOTE"
    },
    {
      "category": "Services",
      "description": "Updated drawings, terminal plans, bill of materials, and serial exports.",
      "leadTime": "14 days",
      "name": "As-built documentation",
      "price": "1,850.00",
      "sku": "DEMO-SKU-SVC-DOC-ASBUILT"
    }
  ],
  "supplier": {
    "email": "katalog@kometenbauteile.invalid",
    "name": "Kometenbauteile Lieferbund Ltd. ",
    "terms": "Demo framework contract DEMO-FC-0004"
  }
}

PDF preview

Generated from the Typst template and JSON data.

Not rendered yet

Public demo: Do not enter real personal, confidential, or secret information. How the demo processes data

Deployment

Run docfuchs on premises, in a container, or natively

docfuchs generates PDFs from JSON data and Typst templates. We develop the software with users. You can run it in your infrastructure and integrate it with existing systems.

On premises

Install and run docfuchs in your infrastructure.

Parallel rendering

The maximum number of simultaneous render jobs is configurable.

Container or native installation

Install docfuchs as a container or native application.

Render API

PDFs from JSON data and Typst templates

The API processes JSON data with a Typst template and returns a PDF. Templates can be versioned and reused.

Open the live editor View the API request

TemplatesCan be versioned and reused

JSON inputStructured input data

PDF outputPreview and download

POST /api/render/invoice HTTP/1.1
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "data": {
    "invoice": "INV-1001"
  }
}

200 OK
Content-Type: application/pdf

Local renderer benchmark

Results from one test run

32 parallel workers calling the renderer directly. These values do not measure API latency.

37,599 PDFs in 30.02 seconds

1,252.30 PDFs per second

800 µs aggregate time per PDF

32 parallel render workers

Test system: AMD Ryzen 9 5950X, 16 cores / 32 threads, 62 GB RAM.

Integration

For products, ERP systems, CRM systems, and internal applications.

Manage templates

Layout, rules, and content are defined in Typst templates. Templates can be versioned.

Generate PDFs through the API

The API accepts JSON data and returns a PDF.

Authentication and status

All API endpoints except the health check require a bearer token.