TPdfWriter.AddFontDescent Property
When false, (the default) text base will be at the y coordinate. For example, DrawString(..., y=100,...) will draw a string with its base at 100. Font descent (for example the lower part of a "p") will be below 100, and the ascent (the upper part) will be above. This is the standard PDF behavior. When true, all text will be drawn above the y coordinate. (both ascent and descent). This is the standard GDI+ behavior, when StringFormat.LineAlignment=StringAlignment.Far.
Syntax
Unit: FlexCel.Pdf
property TPdfWriter.AddFontDescent: Boolean