12 KiB
CJK Typography & Mixed-Script Guide
Rules for Chinese, Japanese, and Korean text in DOCX documents.
Table of Contents
- Font Selection
- Font Size Names (CJK)
- RunFonts Mapping
- Punctuation & Line Breaking
- Paragraph Indentation
- Line Spacing for CJK
- Chinese Government Standard (GB/T 9704)
- Mixed CJK + Latin Best Practices
- OpenXML Quick Reference
Font Selection
Recommended CJK Fonts
| Language | Serif (正文) | Sans (标题) | Notes |
|---|---|---|---|
| Simplified Chinese | 宋体 (SimSun) | 微软雅黑 (Microsoft YaHei) | YaHei for screen, SimSun for print |
| Simplified Chinese | 仿宋 (FangSong) | 黑体 (SimHei) | Government documents |
| Traditional Chinese | 新細明體 (PMingLiU) | 微軟正黑體 (Microsoft JhengHei) | Taiwan standard |
| Japanese | MS 明朝 (MS Mincho) | MS ゴシック (MS Gothic) | Classic pairing |
| Japanese | 游明朝 (Yu Mincho) | 游ゴシック (Yu Gothic) | Modern, Windows 10+ |
| Korean | 바탕 (Batang) | 맑은 고딕 (Malgun Gothic) | Standard pairing |
Government Document Fonts (公文)
| Element | Font | Size |
|---|---|---|
| 标题 (title) | 小标宋 (FZXiaoBiaoSong-B05S) | 二号 (22pt) |
| 一级标题 | 黑体 (SimHei) | 三号 (16pt) |
| 二级标题 | 楷体_GB2312 (KaiTi_GB2312) | 三号 (16pt) |
| 三级标题 | 仿宋_GB2312 加粗 | 三号 (16pt) |
| 正文 (body) | 仿宋_GB2312 (FangSong_GB2312) | 三号 (16pt) |
| 附注/页码 | 宋体 (SimSun) | 四号 (14pt) |
Font Size Names
CJK uses named sizes. Map to points and w:sz half-point values:
| 字号 | Points | w:sz |
Common Use |
|---|---|---|---|
| 初号 | 42pt | 84 | Display title |
| 小初 | 36pt | 72 | Large title |
| 一号 | 26pt | 52 | Chapter heading |
| 小一 | 24pt | 48 | Major heading |
| 二号 | 22pt | 44 | Document title (公文) |
| 小二 | 18pt | 36 | Western H1 equivalent |
| 三号 | 16pt | 32 | CJK heading / 公文 body |
| 小三 | 15pt | 30 | Sub-heading |
| 四号 | 14pt | 28 | CJK subheading |
| 小四 | 12pt | 24 | Standard body (CJK) |
| 五号 | 10.5pt | 21 | Compact CJK body |
| 小五 | 9pt | 18 | Footnotes |
| 六号 | 7.5pt | 15 | Fine print |
RunFonts Mapping
OpenXML uses four font slots to handle multilingual text:
<w:rFonts
w:ascii="Calibri" <!-- Latin characters (U+0000–U+007F) -->
w:hAnsi="Calibri" <!-- Latin extended, Greek, Cyrillic -->
w:eastAsia="SimSun" <!-- CJK Unified Ideographs, Kana, Hangul -->
w:cs="Arial" <!-- Arabic, Hebrew, Thai, Devanagari -->
/>
Word's character classification logic:
- Character is in CJK range → uses
w:eastAsiafont - Character is in complex script range → uses
w:csfont - Character is basic Latin (ASCII) → uses
w:asciifont - Everything else → uses
w:hAnsifont
Key: w:eastAsia is the only way to set CJK fonts. Setting just w:ascii will NOT affect CJK characters. Mixed text within a single run auto-switches fonts at the character level — no need for separate runs.
Document Defaults
<w:docDefaults>
<w:rPrDefault>
<w:rPr>
<w:rFonts w:ascii="Calibri" w:hAnsi="Calibri" w:eastAsia="SimSun" w:cs="Arial" />
<w:sz w:val="22" />
<w:szCs w:val="22" />
<w:lang w:val="en-US" w:eastAsia="zh-CN" />
</w:rPr>
</w:rPrDefault>
</w:docDefaults>
w:lang w:eastAsia helps Word resolve ambiguous characters (e.g., punctuation shared between CJK and Latin).
Punctuation & Line Breaking
Full-Width vs Half-Width
CJK text uses full-width punctuation:
| Type | CJK | Latin |
|---|---|---|
| Period | 。(U+3002) | . |
| Comma | ,(U+FF0C) 、(U+3001) | , |
| Colon | :(U+FF1A) | : |
| Semicolon | ;(U+FF1B) | ; |
| Quotes | 「」『』 or ""'' | "" '' |
| Parentheses | ()(U+FF08/09) | () |
In mixed text, use the punctuation style of the surrounding language context.
OpenXML Controls
<w:pPr>
<w:adjustRightInd w:val="true" /> <!-- Adjust right indent for CJK punctuation -->
<w:snapToGrid w:val="true" /> <!-- Align to document grid -->
<w:kinsoku w:val="true" /> <!-- Enable CJK line breaking rules -->
<w:overflowPunct w:val="true" /> <!-- Allow punctuation to overflow margins -->
</w:pPr>
Kinsoku Rules (禁則処理)
Prevents certain characters from appearing at the start or end of a line:
- Cannot start a line:
)」』】〉》。、,!?;:and closing brackets - Cannot end a line:
(「『【〈《and opening brackets
Word applies these automatically when w:kinsoku is enabled.
Line Breaking
- CJK characters can break between any two characters (no word boundaries needed)
- Latin words within CJK text still follow word-boundary breaking
w:wordWrap w:val="false"enables CJK-style breaking (break anywhere)
Paragraph Indentation
Chinese Standard: 2-Character Indent
Chinese body text conventionally uses a 2-character first-line indent:
<w:ind w:firstLineChars="200" /> <!-- 200 = 2 characters × 100 -->
Preferred over w:firstLine with fixed DXA because firstLineChars scales with font size.
| Indent | Value |
|---|---|
| 1 character | w:firstLineChars="100" |
| 2 characters | w:firstLineChars="200" |
| 3 characters | w:firstLineChars="300" |
Line Spacing
- CJK characters are taller than Latin characters at the same point size
- Default
1.0line spacing may feel cramped with CJK text - Recommended:
1.15–1.5for mixed CJK+Latin,1.0with fixed 28pt for 公文
Auto Spacing
<w:pPr>
<w:autoSpaceDE w:val="true"/> <!-- auto space between CJK and Latin -->
<w:autoSpaceDN w:val="true"/> <!-- auto space between CJK and numbers -->
</w:pPr>
Adds ~¼ em spacing between CJK and non-CJK characters automatically. Recommended: always enable.
GB/T 9704
Chinese government document standard (党政机关公文格式). These are strict requirements, not suggestions.
Page Setup
| Parameter | Value | OpenXML |
|---|---|---|
| Page size | A4 (210×297mm) | Width=11906, Height=16838 |
| Top margin | 37mm | 2098 DXA |
| Bottom margin | 35mm | 1984 DXA |
| Left margin | 28mm | 1588 DXA |
| Right margin | 26mm | 1474 DXA |
| Characters/line | 28 | |
| Lines/page | 22 | |
| Line spacing | Fixed 28pt | line="560" lineRule="exact" |
Document Structure
┌─────────────────────────────────┐
│ 发文机关标志 (红头) │ ← 小标宋 or 红色大字
│ ══════════════════ (红线) │ ← Red #FF0000, 2pt
├─────────────────────────────────┤
│ 发文字号: X机发〔2025〕X号 │ ← 仿宋 三号, centered
│ │
│ 标题 (Title) │ ← 小标宋 二号, centered
│ │ 可分多行,回行居中
│ 主送机关: │ ← 仿宋 三号
│ │
│ 正文 (Body)... │ ← 仿宋_GB2312 三号
│ 一、一级标题 │ ← 黑体 三号
│ (一)二级标题 │ ← 楷体 三号
│ 1. 三级标题 │ ← 仿宋 三号 加粗
│ (1) 四级标题 │ ← 仿宋 三号
│ │
│ 附件: 1. xxx │ ← 仿宋 三号
│ │
│ 发文机关署名 │ ← 仿宋 三号
│ 成文日期 │ ← 仿宋 三号, 小写中文数字
├─────────────────────────────────┤
│ ══════════════════ (版记线) │
│ 抄送: xxx │ ← 仿宋 四号
│ 印发机关及日期 │ ← 仿宋 四号
└─────────────────────────────────┘
Numbering System
一、 ← 黑体 (SimHei), no indentation
(一) ← 楷体 (KaiTi), indented 2 chars
1. ← 仿宋加粗 (FangSong Bold), indented 2 chars
(1) ← 仿宋 (FangSong), indented 2 chars
Colors
| Element | Color | Requirement |
|---|---|---|
| All body text | Black #000000 | Mandatory |
| 红头 (agency name) | Red #FF0000 | Mandatory |
| 红线 (separator) | Red #FF0000 | Mandatory |
| 公章 (official seal) | Red | Mandatory |
Page Numbers
- Position: bottom center
- Format:
-X-(dash-number-dash) - Font: 宋体 四号 (SimSun 14pt,
sz="28") - No page number on cover page if present
Mixed Script
Font Size Harmony
CJK characters appear larger than Latin characters at the same point size. Compensation:
- If body is Calibri 11pt, pair with CJK at 11pt (same size — CJK looks slightly larger but acceptable)
- If precise visual match needed, CJK can be set 0.5–1pt smaller
- In practice, same point size is standard — don't over-optimize
Bold and Italic
- Chinese/Japanese have no true italic. Word synthesizes a slant which looks poor
- Use bold for emphasis in CJK text
- Use 着重号 (emphasis dots) for traditional emphasis:
<w:em w:val="dot"/>on RunProperties
OpenXML Quick Reference
Set EastAsia Font (C#)
new Run(
new RunProperties(
new RunFonts { EastAsia = "SimSun", Ascii = "Calibri", HighAnsi = "Calibri" },
new FontSize { Val = "32" } // 三号 = 16pt = sz 32
),
new Text("这是正文内容")
);
Document Defaults (C#)
new DocDefaults(new RunPropertiesDefault(new RunPropertiesBaseStyle(
new RunFonts {
Ascii = "Calibri", HighAnsi = "Calibri",
EastAsia = "Microsoft YaHei"
},
new Languages { Val = "en-US", EastAsia = "zh-CN" }
)));
公文 Style Definitions (C#)
// Title style — 小标宋 二号 centered
new Style(
new StyleName { Val = "GongWen Title" },
new BasedOn { Val = "Normal" },
new StyleRunProperties(
new RunFonts { EastAsia = "FZXiaoBiaoSong-B05S" },
new FontSize { Val = "44" }, // 二号 = 22pt
new Bold()
),
new StyleParagraphProperties(
new Justification { Val = JustificationValues.Center },
new SpacingBetweenLines { Line = "560", LineRule = LineSpacingRuleValues.Exact }
)
) { Type = StyleValues.Paragraph, StyleId = "GongWenTitle" };
// Body style — 仿宋_GB2312 三号
new Style(
new StyleName { Val = "GongWen Body" },
new StyleRunProperties(
new RunFonts { EastAsia = "FangSong_GB2312", Ascii = "FangSong_GB2312" },
new FontSize { Val = "32" } // 三号 = 16pt
),
new StyleParagraphProperties(
new SpacingBetweenLines { Line = "560", LineRule = LineSpacingRuleValues.Exact }
)
) { Type = StyleValues.Paragraph, StyleId = "GongWenBody" };
Emphasis Dots (着重号)
new RunProperties(new Emphasis { Val = EmphasisMarkValues.Dot });
East Asian Text Layout
<!-- Snap to grid (align CJK chars to character grid) -->
<w:snapToGrid w:val="true"/>
<!-- Two-lines-in-one (双行合一) -->
<w:eastAsianLayout w:id="1" w:combine="true"/>
<!-- Vertical text in a cell -->
<w:textDirection w:val="tbRl"/>