Section hierarchy across long documents
Keep headings and subsections aligned and correctly nested across hundreds of pages.
Docen Layout
THE CHALLENGE
Section numbering drifts, headers repeat, and appendices restart the count. Holding a correct hierarchy together across a very long document is deceptively hard.
THE DOCEN APPROACH
Docen Layout tracks hierarchy across the whole document, so a subsection on page 12 and one on page 212 land in the right place in the tree.
- Detect headings and their levels.
- Maintain nesting across the full document.
- Handle repeated headers and appendices.
- Return a single, coherent hierarchy.
layout → tree.json
{
"levels": 4,
"pages": 214,
"root": [
{ "id": "1", "title": "Introduction" },
{ "id": "1.1", "title": "Scope" },
{ "id": "A", "title": "Appendix A" }
]
}200+
pages, one tree
stable
across the doc
nested
correctly
[→]GET STARTED
Try it on yourown documents.
Bring a sample of the documents behind this use case and we'll show you the structured output.