ArcGIS Pro 2.6 API Reference Guide
LetterWidth Property

ArcGIS.Core.CIM Namespace > CIMTextSymbol Class : LetterWidth Property
Gets or sets the width that is added to each glyph beyond what is defined by its character box in its font. This is a percentage of the original glyph.
Syntax
public double LetterWidth {get; set;}
Public Property LetterWidth As Double
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

CIMTextSymbol Class
CIMTextSymbol Members