write_pdfa1a.json

The JSON file of the “A Tagged PDF/A-1a Deed of Deposit” example. The first part of the archival standard at its highest level: the page also says which line is the heading, which blocks are paragraphs and what is mere decoration.

JSON 82 lines

This file is a request: an application sends it over the network to the server, which creates the PDF and sends it back. It creates the same page as the Rust and Python versions of this example. A request names every file it uses, never its content; the call carries the request and the files together. A font the server already holds, such as DejaVuSans, is named with nothing attached. Send the request to the address the API page gives.

What This Example Is For

A deed kept for thirty years will be read by people nobody has met yet, some of them through software that reads the page aloud. A page that only looks right gives that software nothing to go on: it reads the ink in the order it was laid down, page number and decoration included.

What This Example Shows

Download the File The same example in Rust The same example in Python See What It Creates 
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{
  "archive": "pdfa1a",
  "metadata": {
    "title": "Deed of deposit, January 2026",
    "author": "HQF Development",
    "subject": "A record that says what it is made of, under the first edition",
    "producer": "hqf-pdf-server",
    "created": "2026-01-19T11:30:00+01:00"
  },
  "structure": {
    "lang": "en-GB",
    "children": [
      {
        "tag": "Document",
        "children": [
          {
            "tag": "Sect",
            "children": [
              {"tag": "H1", "content": "heading"},
              {"tag": "P", "content": "body"},
              {"tag": "P", "content": "closing"}
            ]
          }
        ]
      }
    ]
  },
  "items": [
    {
      "type": "flow",
      "rect": {"llx": 72, "lly": 750, "urx": 523, "ury": 782},
      "content": "Deed of deposit",
      "font": "DejaVuSans",
      "font_size": 20,
      "first_baseline": {"points": 0},
      "tag": "H1",
      "mark": "heading",
      "pages": [1]
    },
    {
      "type": "flow",
      "rect": {"llx": 72, "lly": 600, "urx": 523, "ury": 730},
      "content": "This deed claims the first part of the archival standard at its highest level. On top of the promise that the page keeps its looks, and on top of every mark of ink saying which letter it stands for, the file says what it is made of: this line is a heading, that block is a paragraph, and the rule across the foot is furniture that says nothing at all.\nSomething reading the deed aloud follows the order the tree gives rather than the order the ink was laid down in, and reading software on a telephone has something to reflow.",
      "font": "DejaVuSans",
      "font_size": 11,
      "leading": 16,
      "first_baseline": {"points": 0},
      "tag": "P",
      "mark": "body",
      "pages": [1]
    },
    {
      "type": "flow",
      "rect": {"llx": 72, "lly": 520, "urx": 523, "ury": 580},
      "content": "The papers listed above were deposited on 19 January 2026 and are held for thirty years. The first part of the standard is what the depositary asks for by name, so the sheet carries nothing the part closes: no see-through paint, no part of the page that can be switched off, and no file inside it.",
      "font": "DejaVuSans",
      "font_size": 11,
      "leading": 16,
      "first_baseline": {"points": 0},
      "tag": "P",
      "mark": "closing",
      "pages": [1]
    },
    {
      "type": "rect",
      "rect": {"llx": 72, "lly": 70, "urx": 523, "ury": 71},
      "fill": [0, 0, 0],
      "artifact": "footer",
      "pages": [1]
    },
    {
      "type": "flow",
      "rect": {"llx": 72, "lly": 56, "urx": 523, "ury": 68},
      "content": "Page 1 of 1",
      "font": "DejaVuSans",
      "font_size": 9,
      "first_baseline": {"points": 0},
      "artifact": "footer",
      "pages": [1]
    }
  ]
}