PdfFlowHeadingContent.Level Property
Gets or sets the heading level (1 to 8).
Property Value
An integer value greater than 0 and smaller than or equal to 8.
Remarks
Level 1 is the top most heading, level 2 headings are children of level 1 and so on.
The level information is used to build the document's outline tree and to generate correctly the heading number if AutoNumber property is true.