PdfVisualAnnotationMoveEventArgs.AllowHorizontalMove Property
Gets or sets a value indicating whether the move operation should be allowed on horizontal.
Property Value
True if the horizontal move operation should be allowed. Default is true.
Remarks
If both AllowHorizontalMove and AllowVerticalMove properties are false then the annotation cannot be moved. This property is not used by PdfDocumentView.AfterAnnotationMove event.