query DocumentTemplate($id: ID!) {
  documentTemplate(id: $id) {
    id
    object
    name
    type
    status
    livemode
    created
    updated
    slug
    version
    related_object
    engine
    source
    page {
      size
      orientation
      margins_mm
      dpi
    }
    formats
    locale
  }
}

{
  "id": "dtpl_1a2B3c"
}

{
  "data": {
    "documentTemplate": {
      "id": "dtpl_1a2B3c",
      "object": "document_template",
      "name": "Example",
      "type": "example",
      "status": "draft",
      "livemode": true,
      "created": 1791302400,
      "updated": 1791302400,
      "slug": "example",
      "version": 3,
      "related_object": "shipment",
      "engine": "liquid",
      "source": "api",
      "page": {
        "size": "4x6",
        "orientation": "portrait",
        "margins_mm": 1.5,
        "dpi": 2
      },
      "formats": [
        "pdf"
      ],
      "locale": "example"
    }
  }
}