80 lines
6.1 KiB
Markdown
80 lines
6.1 KiB
Markdown
# Localization parity
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-12 · **Change:** minor (list all registered interface languages; preserve the original coverage snapshot) · **Target:** Adobe Acrobat Pro (Acrobat DC, continuous track 26.002.21931, macOS)
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Per-language status of PdfCraft's interface against Acrobat Pro's. How translations work and how to
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add a language: [localization.md](localization.md). Summary in [ROADMAP.md](../ROADMAP.md).
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## How this was measured
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- **Strings translated** is measured: the catalogs in `crates/ui-egui/src/i18n/<code>.tsv`, counted
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as distinct `(context, English)` keys with a non-empty translation. The denominator is the union
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of keys across all catalogs, **2,143**. Cross-check: of the 1,151 distinct `tl!("…")` literals in
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`crates/ui-egui/src`, every full catalog covers 96.5–99.4% (7 literals are in no catalog yet).
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English is built in.
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- **Not counted:** error details from the engine and the operating system, which are shown in
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English inside a translated frame; there is no translated user documentation or help yet (Acrobat
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ships localized help).
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- **Script support** comes from [localization.md](localization.md), the vendored winit IME patches
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(`vendor/README.md`) and user reports.
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- **Native review**: "community" means a native speaker contributed or corrected the catalog in a
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pull request or issue; "no" means no record of review. No catalog has had a formal review.
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- **Acrobat** ships 24 interface localizations on macOS (`.lproj`: cs, da, de, en, es, fi, fr, hu,
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it, ja, ko, nl, no, pl, pt, ru, sv, tr, uk, zh_CN, zh_TW, plus en_AE, en_IL, fr_MA) and Middle
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East / North Africa editions (MEA Arabic, MEH Hebrew, NAF French; `Resources/Sequences/`).
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## The twelve key languages
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| Language | Code | UI strings translated | Dialogs / tooltips / help | Script support | Native review | Status | Acrobat ships it | To `full` (h) |
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|---|---|---|---|---|---|---|---|---|
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| English | `en` | built in (100%) | all; README and docs | Latin | yes | **full** | yes | 0 |
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| Simplified Chinese | `zh-hans` | 2,088 (97.4%) | dialogs and tooltips through `tl!`; no help | CJK text and IME work, but **release builds have no Hans face**: many characters show as boxes (#826, #688, #728, #758; Flatpak #689) | no | partial | yes | 6–12 |
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| Spanish | `es` | 2,046 (95.5%) | dialogs and tooltips; no help | Latin | no | partial | yes | 2–4 |
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| Hindi | `hi` | 0 | none | Devanagari not tested (egui shapes Telugu conjuncts, so shaping is likely workable); no Devanagari face in craft-fonts | no | none | no | 10–18 |
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| Arabic | `ar` | 2,143 (100%) | dialogs and tooltips; no help | Letters joined and lines reordered at load, but **layout not mirrored**, wrapped lines break at the wrong end, typed text runs left to right (`localization.md` §Arabic) | no | partial | yes (Middle East edition) | 25–45 |
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| French | `fr` | 2,128 (99.3%) | dialogs and tooltips; no help | Latin | no | partial | yes | 1–2 |
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| Portuguese (Brazil) | `pt-br` | 2,130 (99.4%) | dialogs and tooltips; no help | Latin | community (#288) | partial | yes | 1–2 |
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| Indonesian | `id` | 0 | none | Latin | no | none | no | 3–5 |
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| Japanese | `ja` | 2,123 (99.1%) | dialogs and tooltips; no help | BIZ UDPGothic from craft-fonts; IME patched on macOS, Windows, X11, Wayland; vertical text renders but can't be edited | no | partial | yes | 4–8 |
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| German | `de` | 2,128 (99.3%) | dialogs and tooltips; no help | Latin | community, in progress (#828: terminology, clipping) | partial | yes | 2–4 |
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| Korean | `ko` | 0 | none | Hangul IME patched (Microsoft and Apple Korean, `vendor/README.md` winit 3, 6, 9, 10); no Hangul UI face in craft-fonts | no | none | yes | 6–10 |
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| Vietnamese | `vi` | 0 | none | Latin with stacked diacritics; bundled Inter covers them (not tested) | no | none | no | 3–5 |
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**Localization dimension ≈ 59%**: the mean over the twelve, counting a catalog's percentage but only
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60% for Chinese and Arabic until their script problems are fixed, and 0 for the four missing
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languages. **≈ 60–115 h** to bring all twelve to `full`, of which ≈ 35–60 h is engineering (Hans
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face, RTL layout, bidi text) and the rest catalogs and fixes; native-speaker review needs humans.
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No language is `full` except English: every catalog leaves engine error details in English, and
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none has translated help.
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## Other shipped languages
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| Language | Code | UI strings translated | Status | Acrobat ships it |
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|---|---|---|---|---|
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| Traditional Chinese | `zh-hant` | 2,016 (94.1%) | partial (same Hans/Hant face caveat) | yes |
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| Russian | `ru` | 2,043 (95.3%) | partial | yes |
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| Bulgarian | `bg` | 2,094 (97.7%) | partial | no |
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| Czech | `cs` | 135 (6.3%) | menus only | yes |
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| Telugu | `te` | 2,058 (96.0%) | partial (the release-pinned craft-fonts has no Telugu face yet) | no |
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| Hungarian | `hu` | 2,126 (99.2%) | partial | yes |
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| Ukrainian | `uk` | 2,142 (100%) | partial | yes |
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| Italian | `it` | 2,130 (99.4%) | partial | yes |
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| Kazakh | `kk` | 2,327 entries | partial | no |
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| Polish | `pl` | 2,287 entries | partial | yes |
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| Slovenian | `sl` | 2,324 entries | partial | no |
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| Greek | `el` | 2,341 entries | partial | no |
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| Turkish | `tr` | 2,313 entries | partial | yes |
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| Lithuanian | `lt` | 2,578 entries | partial; community native-speaker review ([#1401](https://github.com/storytold/pdfcraft/pull/1401)) | no |
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**14 other languages** ship (21 catalogs plus English, 22 interface languages in Preferences).
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The entry counts without percentages were measured on 2026-10-12; they are not percentages of the older 2,143-key snapshot above. Their presence does not imply a detailed linguistic or runtime review.
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Acrobat languages PdfCraft lacks: Danish, Dutch, Finnish, Norwegian, Swedish, Hebrew.
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## Revision history
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| Date | Change | Summary |
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| 2026-10-12 | minor | Added current counts for Kazakh, Polish, Slovenian, Greek, Turkish and Lithuanian; retained existing language assessments and the original percentage snapshot |
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| 2026-10-10 | major | Created. Catalog counts measured from `crates/ui-egui/src/i18n/*.tsv` against the 2,143-key union; Acrobat's localizations from its bundle's `.lproj` and Sequences folder names |
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