This class represents an implementation to the font descriptor that gets its
information from a COS Dictionary.
author: Ben Litchfield version: $Revision: 1.4 $
A string representing the preferred font stretch.
According to the PDF Spec:
The font stretch value; it must be one of the following (ordered from
narrowest to widest): UltraCondensed, ExtraCondensed, Condensed, SemiCondensed,
Normal, SemiExpanded, Expanded, ExtraExpanded or UltraExpanded.
The stretch of the font.
The weight of the font. According to the PDF spec "possible values are
100, 200, 300, 400, 500, 600, 700, 800 or 900" Where a higher number is
more weight and appears to be more bold.
The font weight.