docx/bookmark

A paragraph wrapped in a matched <w:bookmarkStart>/<w:bookmarkEnd> pair under the name 'myBookmark'.

Library verdicts: python-docx: — docxjs: pass

Metadata

Feature iddocx/bookmark
Formatdocx
Categoryreferences
Spececma-376-5-part-1 § 17.13.6 w:bookmarkStart

XPath assertions

ID / partPredicateXPathpython-docxdocxjs
bookmark-start-named
word/document.xml
exist
A <w:bookmarkStart> with @w:name='myBookmark' must be present.
//w:bookmarkStart[@w:name='myBookmark']
bookmark-end-matches-start
word/document.xml
exist
A matching <w:bookmarkEnd> whose @w:id equals the bookmark-start's @w:id must be present.
//w:bookmarkEnd[@w:id=//w:bookmarkStart[@w:name='myBookmark']/@w:id]

Render assertions

IDPredicateSelectorpython-docxdocxjs
bookmark-anchor-renderedcss_selector/ exist
A DOM node carrying the bookmark name (as id, data-bookmark, or <a name>) should exist. Most renderers drop bookmarks today so this often fails — it's a gap to track, not a correctness bug in the authoring library.
.docx-wrapper [id='myBookmark'], .docx-wrapper [data-bookmark='myBookmark'], .docx-wrapper a[name='myBookmark']pass

Generator source

scripts/gen_bookmark.py

#!/usr/bin/env python3
"""Generate ``fixtures/docx/bookmark.docx``.

A minimal document exercising the ``w:bookmarkStart`` / ``w:bookmarkEnd``
pair. One paragraph containing the literal text ``Bookmarked text``,
wrapped in a bookmark named ``myBookmark``.

Uses the fork's ``Paragraph.add_bookmark()`` high-level API
(python-docx >= 2026.05.0). When no ``start_run`` / ``end_run`` is
supplied the bookmark wraps the whole paragraph, which is what we want
for the fixture.
"""

from __future__ import annotations

from pathlib import Path

from docx import Document

_REPO_ROOT = Path(__file__).resolve().parent.parent
_OUT = _REPO_ROOT / "fixtures" / "docx" / "bookmark.docx"


def main() -> int:
    doc = Document()
    paragraph = doc.add_paragraph("Bookmarked text")
    paragraph.add_bookmark("myBookmark")
    _OUT.parent.mkdir(parents=True, exist_ok=True)
    doc.save(_OUT, reproducible=True)
    print(_OUT)
    return 0


if __name__ == "__main__":
    raise SystemExit(main())

Manifest (expanded)

{
  "$schema": "../manifest.schema.json",
  "id": "docx/bookmark",
  "title": "Named bookmark",
  "format": "docx",
  "category": "references",
  "summary": "A paragraph wrapped in a matched <w:bookmarkStart>/<w:bookmarkEnd> pair under the name 'myBookmark'.",
  "spec": {
    "source": "ecma-376-5-part-1",
    "clause": "17.13.6",
    "element": "w:bookmarkStart",
    "rnc_reference": "spec/ecma-376-5/part-1/rnc/WordprocessingML.rnc",
    "xsd_reference": "spec/ecma-376-5/part-1/xsd/wml.xsd",
    "notes": "A bookmark is a range marker with no visible rendering — it's purely a target for hyperlinks, cross-references, and Word commands. The start carries @w:id and @w:name; the end carries @w:id only, matched to the start. Both ends must appear in the same body."
  },
  "fixtures": {
    "machine": "docx/bookmark",
    "office": "docx/bookmark"
  },
  "generator": {
    "python": "scripts/gen_bookmark.py"
  },
  "assertions": [
    {
      "id": "bookmark-start-named",
      "part": "word/document.xml",
      "namespaces": {
        "w": "http://schemas.openxmlformats.org/wordprocessingml/2006/main"
      },
      "xpath": "//w:bookmarkStart[@w:name='myBookmark']",
      "must": "exist",
      "description": "A <w:bookmarkStart> with @w:name='myBookmark' must be present."
    },
    {
      "id": "bookmark-end-matches-start",
      "part": "word/document.xml",
      "namespaces": {
        "w": "http://schemas.openxmlformats.org/wordprocessingml/2006/main"
      },
      "xpath": "//w:bookmarkEnd[@w:id=//w:bookmarkStart[@w:name='myBookmark']/@w:id]",
      "must": "exist",
      "description": "A matching <w:bookmarkEnd> whose @w:id equals the bookmark-start's @w:id must be present."
    }
  ],
  "render_assertions": [
    {
      "id": "bookmark-anchor-rendered",
      "kind": "css_selector",
      "selector": ".docx-wrapper [id='myBookmark'], .docx-wrapper [data-bookmark='myBookmark'], .docx-wrapper a[name='myBookmark']",
      "must": "exist",
      "description": "A DOM node carrying the bookmark name (as id, data-bookmark, or <a name>) should exist. Most renderers drop bookmarks today so this often fails — it's a gap to track, not a correctness bug in the authoring library."
    }
  ]
}

Fixture

Download bookmark.docx (18.6 KB)

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Spec notes

A bookmark is a range marker with no visible rendering — it's purely a target for hyperlinks, cross-references, and Word commands. The start carries @w:id and @w:name; the end carries @w:id only, matched to the start. Both ends must appear in the same body.