FlexCelPdfExport.PdfSubType Property
Used with specific values of PdfType, when the subtype cannot be deduced automatically. You will normally want to leave this property at TPdfSubType.Default. Only change it if you are required to create a specific subtype of PDF, which is not what is automatically deduced.
Syntax
Namespace: FlexCel.Render
public TPdfSubType PdfSubType { get; set; }