---
title: NSKernAttributeName
framework: appkit
role: symbol
role_heading: Global Variable
path: appkit/nskernattributename
---

# NSKernAttributeName

The kerning of the text.

## Declaration

```occ
extern NSAttributedStringKey NSKernAttributeName;
```

## Discussion

Discussion The value of this attribute is an NSNumber object containing a floating-point value. This value specifies the number of points by which to adjust kern-pair characters. Kerning prevents unwanted space from occurring between specific characters and depends on the font. The value 0 means kerning is disabled. The default value for this attribute is 0.

## See Also

### Getting rendering attribute keys

- [NSBackgroundColorAttributeName](appkit/nsbackgroundcolorattributename.md)
- [NSBaselineOffsetAttributeName](appkit/nsbaselineoffsetattributename.md)
- [NSFontAttributeName](appkit/nsfontattributename.md)
- [NSForegroundColorAttributeName](appkit/nsforegroundcolorattributename.md)
- [NSGlyphInfoAttributeName](appkit/nsglyphinfoattributename.md)
- [NSLigatureAttributeName](appkit/nsligatureattributename.md)
- [NSParagraphStyleAttributeName](appkit/nsparagraphstyleattributename.md)
- [NSStrikethroughColorAttributeName](appkit/nsstrikethroughcolorattributename.md)
- [NSStrikethroughStyleAttributeName](appkit/nsstrikethroughstyleattributename.md)
- [NSStrokeColorAttributeName](appkit/nsstrokecolorattributename.md)
- [NSStrokeWidthAttributeName](appkit/nsstrokewidthattributename.md)
- [NSSuperscriptAttributeName](appkit/nssuperscriptattributename.md)
- [NSTrackingAttributeName](appkit/nstrackingattributename.md)
- [NSUnderlineColorAttributeName](appkit/nsunderlinecolorattributename.md)
- [NSUnderlineStyleAttributeName](appkit/nsunderlinestyleattributename.md)