ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMMaplexLabelPlacementProperties Class / LabelBuffer Property

LabelBuffer Property
Gets or sets the label buffer. Increase buffer to stop labels from being placed too close to each other.
Syntax
public int LabelBuffer {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also