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fix: line and page breaks in long documents - #1347

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jedrazb merged 26 commits into
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fix/justified-line-fidelity
Oct 15, 2026
Merged

fix: line and page breaks in long documents#1347
jedrazb merged 26 commits into
mainfrom
fix/justified-line-fidelity

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@jedrazb

@jedrazb jedrazb commented Oct 14, 2026 •
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Fix line and page breaks for justified text, footnotes, and tables, and let PDF export handle long documents and large installed fonts.

🤖 Generated with Claude Code

jedrazb and others added 13 commits October 14, 2026 22:26
@jedrazb @claude
fix(core): weigh space compression against expansion in justified lines
e21ca69 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): let a hyphen-break fragment borrow space in justified lines
f3316fb 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): let currency and math symbol words lend justified space
c78c545 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(docx-to-pdf): scale paint work budgets with the page count
0f647c0 
Long documents within the documented page limit no longer fail with
workLimitExceeded. The evaluation scripts accept up to 2000 pages.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): a note reference on a paragraph's last line needs its spac…
abcd778 
…e after to fit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): fit a paragraph's space after above a footnote area
d7081f9 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
test(core): cover justified space shrink and footnote space-after fit
29d3be3 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(docx-to-pdf): find installed Garamond faces
9435b4f 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): read note citations from pending lines by their spans
bc509b5 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
test(docx-to-pdf): cover Garamond discovery; add changeset
09bf802 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): a table row that ends the page needs room for its closing …
bb32385 
…border

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
refactor(core): pass a table row placement as one value
7690f2b 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
chore: describe table border fit in the changeset
6d4d846 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@vercel

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The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Actions Updated
docx-editor Ready Ready Preview Oct 15, 2026 1:23pm UTC

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All contributors have signed the CLA ✍️ ✅

Posted by the CLA bot.

@jedrazb @claude
fix(core): keep an automatic-width table's outer rules inside the tex…
05fc6c7 
…t column

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@github-actions

github-actions Bot commented Oct 14, 2026 •
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Performance benchmark

Typing latency (browser)

Scenario Base frame Head frame Δ Frame p95 Input p95
521pp-editing-character 68.30 ms 51.40 ms 🟢 -24.7% 54.25 ms 0.15 ms
521pp-editing-wrap 62.70 ms 48.50 ms ⚪ -22.6% 58.95 ms 0.15 ms
521pp-suggesting-character 115.75 ms 91.45 ms 🟢 -21.0% 98.55 ms 0.15 ms
editing-character 59.95 ms 89.90 ms 🔴 +50.0% ⚠️ 109.30 ms 0.20 ms
editing-wrap 50.90 ms 53.35 ms ⚪ +4.8% 56.75 ms 0.15 ms
suggesting-character 106.55 ms 117.05 ms ⚪ +9.9% 129.65 ms 0.10 ms
suggesting-wrap 109.50 ms 122.20 ms ⚪ +11.6% 125.65 ms 0.15 ms
highlighted-edit-character 48.80 ms 48.50 ms ⚪ -0.6% 57.20 ms 0.10 ms
highlighted-suggest-character 114.05 ms 116.15 ms ⚪ +1.8% 128.35 ms 0.15 ms
tracked-editing-character 41.70 ms 33.35 ms ⚪ -20.0% 37.80 ms 0.10 ms
tracked-suggesting-character 77.25 ms 64.60 ms ⚪ -16.4% 79.70 ms 0.15 ms
tracked-suggesting-wrap 68.70 ms 62.45 ms ⚪ -9.1% 64.45 ms 0.10 ms
huge-open-to-ready 5257.00 ms 6016.00 ms 🔴 +14.4% 6016.00 ms 6016.00 ms
huge-suggesting-character 154.30 ms 175.35 ms ⚪ +13.6% 210.05 ms 0.15 ms
huge-suggesting-wrap 161.20 ms 142.60 ms ⚪ -11.5% 165.95 ms 0.15 ms
huge-paste-50k 248.20 ms 238.05 ms ⚪ -4.1% 257.55 ms 0.15 ms

Engine layout (headless)

Scenario Base median Head median Δ Head p95
steady-middle-text 19.17 ms 17.87 ms ⚪ -6.8% 20.87 ms
wrap-middle-text 18.30 ms 18.93 ms ⚪ +3.4% 20.14 ms
forced-middle-reflow 16.34 ms 16.49 ms ⚪ +0.9% 20.08 ms
forced-early-reflow 16.21 ms 17.56 ms ⚪ +8.3% 21.00 ms
enter-split-middle 15.92 ms 18.59 ms ⚪ +16.8% 27.65 ms
backspace-join-middle 15.81 ms 16.17 ms ⚪ +2.3% 19.22 ms
enter-split-early 16.42 ms 19.52 ms ⚪ +18.9% 22.70 ms
page-break-middle 16.25 ms 17.14 ms ⚪ +5.5% 24.18 ms
How to read these tables
  • Base: the main commit this PR builds on. Head: this PR.
  • Median: the typical sample. p95: 95 of 100 samples were faster than this.
  • Browser table: frame is the time from the keystroke until the edit is
    visible on screen — the number a typing user feels. Input p95 is how long
    the keystroke handler blocked the page (typing buffers its work off the input
    task, so this stays near zero by design).
  • 521pp-* rows run the pinned 521-page reproduction; the other rows run the
    small synthetic fixtures that exist for deterministic work-counter gates.
  • Δ: 🟢 faster, 🔴 slower, ⚪ inside the noise. Each side runs interleaved
    rounds; a delta smaller than the run-to-run spread renders neutral.
  • Work counters: exact counts of layout work (paragraphs placed, pages
    reused, full passes). They are deterministic: a change means different
    behavior, not just different speed.

Work counters: unchanged.

Head report (full JSON) 
{
  "schema": 1,
  "fixture": "/home/runner/_work/docx-editor/docx-editor/e2e/fixtures/synthetic-long-edit.docx",
  "fixtureBytes": 27897,
  "fixtureSha256": "ca8ee28a8d40ae7914a820303b96ddbbe8f06d37325b0fc2ae6f1140aea96321",
  "environment": {
    "runtime": "Bun 1.4.3",
    "arch": "x64"
  },
  "config": {
    "runs": 3,
    "warmup": 2,
    "measurer": "fixed(6px,14px)"
  },
  "scenarios": [
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      "name": "steady-middle-text",
      "target": {
        "paragraphIndex": 1919,
        "paragraphId": "/word/document.xml#0.0.1919"
      },
      "transaction": {
        "medianMs": 13.845135000000028,
        "p95Ms": 18.97335800000019,
        "minMs": 11.719780999999784,
        "maxMs": 18.97335800000019
      },
      "layout": {
        "medianMs": 5.131538999999975,
        "p95Ms": 5.47603700000036,
        "minMs": 4.597131999999874,
        "maxMs": 5.47603700000036
      },
      "total": {
        "medianMs": 18.4422669999999,
        "p95Ms": 24.44939500000055,
        "minMs": 16.85131999999976,
        "maxMs": 24.44939500000055
      },
      "work": {
        "placed": 13,
        "total": 3200,
        "reusedPages": 154,
        "fullPasses": 1,
        "pagesBefore": 204,
        "pagesAfter": 204,
        "cache": {
          "hits": 13,
          "misses": 3201,
          "evictions": 0,
          "size": 3201
        }
      }
    },
    {
      "name": "wrap-middle-text",
      "target": {
        "paragraphIndex": 1599,
        "paragraphId": "/word/document.xml#0.0.1599"
      },
      "transaction": {
        "medianMs": 12.780479999999443,
        "p95Ms": 13.69038399999954,
        "minMs": 11.186867000000348,
        "maxMs": 13.69038399999954
      },
      "layout": {
        "medianMs": 4.8042820000000575,
        "p95Ms": 5.818982999999207,
        "minMs": 4.441999000000578,
        "maxMs": 5.818982999999207
      },
      "total": {
        "medianMs": 18.494665999999597,
        "p95Ms": 18.59946299999865,
        "minMs": 15.628866000000926,
        "maxMs": 18.59946299999865
      },
      "work": {
        "placed": 13,
        "total": 3200,
        "reusedPages": 154,
        "fullPasses": 1,
        "pagesBefore": 204,
        "pagesAfter": 204,
        "cache": {
          "hits": 13,
          "misses": 3201,
          "evictions": 0,
          "size": 3201
        }
      }
    },
    {
      "name": "forced-middle-reflow",
      "target": {
        "paragraphIndex": 1599,
        "paragraphId": "/word/document.xml#0.0.1599"
      },
      "transaction": {
        "medianMs": 10.45316400000047,
        "p95Ms": 12.005530000000363,
        "minMs": 10.400997000000643,
        "maxMs": 12.005530000000363
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      "layout": {
        "medianMs": 4.509936999999809,
        "p95Ms": 5.129142999999203,
        "minMs": 3.809567000000243,
        "maxMs": 5.129142999999203
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      "total": {
        "medianMs": 14.963101000000279,
        "p95Ms": 17.134672999999566,
        "minMs": 14.210564000000886,
        "maxMs": 17.134672999999566
      },
      "work": {
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        "total": 3200,
        "reusedPages": 154,
        "fullPasses": 1,
        "pagesBefore": 204,
        "pagesAfter": 204,
        "cache": {
          "hits": 13,
          "misses": 3201,
          "evictions": 0,
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      }
    },
    {
      "name": "forced-early-reflow",
      "target": {
        "paragraphIndex": 159,
        "paragraphId": "/word/document.xml#0.0.159"
      },
      "transaction": {
        "medianMs": 11.379809999999452,
        "p95Ms": 13.11299599999984,
        "minMs": 11.372156000001269,
        "maxMs": 13.11299599999984
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      "layout": {
        "medianMs": 4.986824999999953,
        "p95Ms": 7.61537700000008,
        "minMs": 4.349435000000085,
        "maxMs": 7.61537700000008
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      "total": {
        "medianMs": 18.099820999999793,
        "p95Ms": 18.98753300000135,
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        "maxMs": 18.98753300000135
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      "work": {
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        "reusedPages": 155,
        "fullPasses": 1,
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          "evictions": 0,
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    },
    {
      "name": "enter-split-middle",
      "target": {
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        "paragraphId": "/word/document.xml#0.0.1919"
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      "transaction": {
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        "p95Ms": 18.428290999998353,
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        "maxMs": 18.428290999998353
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        "medianMs": 4.441649000000325,
        "p95Ms": 6.158032999999705,
        "minMs": 4.124911999999313,
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      "total": {
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    },
    {
      "name": "backspace-join-middle",
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        "p95Ms": 16.46080399999846,
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        "maxMs": 16.46080399999846
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        "total": 3199,
        "reusedPages": 154,
        "fullPasses": 1,
        "pagesBefore": 204,
        "pagesAfter": 204,
        "cache": {
          "hits": 12,
          "misses": 3201,
          "evictions": 0,
          "size": 3201
        }
      }
    },
    {
      "name": "enter-split-early",
      "target": {
        "paragraphIndex": 159,
        "paragraphId": "/word/document.xml#0.0.159"
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      "transaction": {
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        "p95Ms": 11.587733000000298,
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        "p95Ms": 4.636615999999776,
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        "maxMs": 16.224349000000075
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        "fullPasses": 1,
        "pagesBefore": 204,
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        "cache": {
          "hits": 13,
          "misses": 3202,
          "evictions": 0,
          "size": 3202
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      }
    },
    {
      "name": "page-break-middle",
      "target": {
        "paragraphIndex": 1919,
        "paragraphId": "/word/document.xml#0.0.1919"
      },
      "transaction": {
        "medianMs": 9.862943000000087,
        "p95Ms": 20.240814000000682,
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      "layout": {
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        "p95Ms": 4.274864000000889,
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        "reusedPages": 99,
        "fullPasses": 1,
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        "cache": {
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  ]
}
Base report (full JSON) 
{
  "schema": 1,
  "fixture": "/home/runner/_work/_temp/base/e2e/fixtures/synthetic-long-edit.docx",
  "fixtureBytes": 27897,
  "fixtureSha256": "ca8ee28a8d40ae7914a820303b96ddbbe8f06d37325b0fc2ae6f1140aea96321",
  "environment": {
    "runtime": "Bun 1.4.3",
    "arch": "x64"
  },
  "config": {
    "runs": 3,
    "warmup": 2,
    "measurer": "fixed(6px,14px)"
  },
  "scenarios": [
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      "target": {
        "paragraphIndex": 1919,
        "paragraphId": "/word/document.xml#0.0.1919"
      },
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        "maxMs": 12.657439999999951
      },
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        "p95Ms": 11.983543000000054,
        "minMs": 4.666119999999864,
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Browser report (full JSON) 
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… truncated …
Browser baseline (full JSON) 
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… truncated …

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📦 Package size report

Package Tarball vs main Unpacked vs main
@docx-editor.dev/core 2.57 MB — 8.33 MB —
@docx-editor.dev/docx-to-markdown 63.9 KB — 202.5 KB —
@docx-editor.dev/docx-to-pdf 2.43 MB — 4.96 MB —
@docx-editor.dev/editor-api 180.2 KB — 753.5 KB —
@docx-editor.dev/fonts 4.01 MB — 8.12 MB —
@docx-editor.dev/fonts-cjk 13.07 MB — 15.73 MB —
@docx-editor.dev/i18n 623.8 KB — 2.24 MB —
@docx-editor.dev/pro 416.2 KB — 1.41 MB —
@docx-editor.dev/react 397.8 KB — 1.44 MB —
@docx-editor.dev/telemetry 71.3 KB — 224.8 KB —
@docx-editor.dev/vue 307.4 KB — 1.50 MB —

No baseline from main was available; sizes are reported without deltas.

jedrazb and others added 4 commits October 14, 2026 23:50
@jedrazb @claude
fix(core): let every trailing space hang on the shorter justified line
80562e4 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): size autofit columns for deleted content in every view
7f1ba4a 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): let a cross-reference result complete a justified word
e8a4b95 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): keep the view's own column minimums beside deleted content
a034fec 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb jedrazb changed the title fix: justified lines, footnote space after, and table border fit at page ends fix: justified lines, footnote space after, and table widths for long redlined documents Oct 14, 2026
@jedrazb @claude
chore: use neutral examples in comments and tests
853ee18 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
jedrazb and others added 2 commits October 15, 2026 08:08
@jedrazb @claude
fix(docx-to-pdf): shape installed CJK font collections up to 40 MiB
92d5e7e 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
chore: mention CJK fonts in the changeset
0dbb5cb 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
refactor: address review of justified, footnote, and table fit changes
daca75f 
Read the markup structure only for tables with revisions, limit the
auto-width shrink to the outer rule, let a splittable next row keep the row
above, scope the fixed-result mark to REF results, keep the PDF shaping
default under a partial fontShaping, and add incremental-layout tests.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
fix(core): keep page and note references out of the justified shrink
e48166b 
PAGEREF and NOTEREF results can change width after the line is decided, so
only a plain REF result counts as a fixed word. Refresh the API snapshot, fix
the closing-edge band comment, and cover a splittable next row and a wide grid.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb @claude
test(core): a splittable next row keeps a row above a thick bottom rule
31d1101 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb jedrazb changed the title fix: justified lines, footnote space after, and table widths for long redlined documents fix: line and page breaks in long documents Oct 15, 2026
TimurKr
TimurKr approved these changes Oct 15, 2026
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Nice work, looks good to go.

jedrazb and others added 2 commits October 15, 2026 15:20
@jedrazb @claude
fix(core): return lines ahead of a held footnote reference and give S…
dfc835e 
…imSun its line height

The footnote hold-out kept a whole paragraph continuation off the previous page when
its one reference line could not return. Lines ahead of the reference now return, as
far as widow and orphan control allow. One-em CJK faces with a small built-in gap now
take the same 1.3 em single line as faces without one. The section flow keys and the
table read prelude move to their own modules to keep the layout files under their caps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jedrazb
Merge remote-tracking branch 'origin/main' into fix/justified-line-fi…
53b7744 
…delity
TimurKr
TimurKr approved these changes Oct 15, 2026
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Looks good to me. Ship it.

@jedrazb
jedrazb merged commit 02b31d7 into main Oct 15, 2026
36 checks passed
@jedrazb
jedrazb deleted the fix/justified-line-fidelity branch October 15, 2026 13:37
@eigenpal-release-pal

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🚀 Released in v2.31.0

This branch was successfully deployed

1 active deployment
Preview — 53b77440 Deployed Oct 15, 2026 by vercel[bot]
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