w:autoSpaceDN (Automatic Spacing Between East Asian and Numeric Text)

Automatically inserts a small amount of space between East Asian (CJK) characters and Arabic numerals within a paragraph.

Parent elements

w:pPr

Description

w:autoSpaceDN (auto-space Double-byte and Numbers) is a toggle property that instructs the processor to automatically insert a small half-width space between contiguous East Asian (CJK) characters and Arabic numeral runs. This improves readability in documents that mix CJK text with numbers.

It is defined in ECMA-376 Part 1 §17.3.1.3.

Attributes

Attribute	Type	Possible Values	Description
`w:val`	`ST_OnOff`	`true`, `false`, `1`, `0`, `on`, `off`	Enables automatic spacing between CJK and numeral runs. Omit to inherit.

Examples

<w:p>
  <w:pPr>
    <w:autoSpaceDN/>
  </w:pPr>
  <w:r><w:t>第3章のサンプル2024年度版</w:t></w:r>
</w:p>

using DocumentFormat.OpenXml.Wordprocessing;

var para = new Paragraph(
    new ParagraphProperties(
        new AutoSpaceDN()
    ),
    new Run(new Text("第3章のサンプル2024年度版"))
);

Notes

Typically enabled alongside w:autoSpaceDE in East Asian document templates.
The space amount is processor-defined, generally a quarter of an em width.