public static final class PdfCanvasConstants.TextRenderingMode
The text rendering mode determines whether showing text causes glyph
outlines to be stroked, filled, used as a clipping boundary, or some
combination of the three. Stroking, filling, and clipping have the same
effects for a text object as they do for a path object, although they are
specified in an entirely different way.
If the text rendering mode calls for filling, the current nonstroking
color in the graphics state is used; if it calls for stroking, the
current stroking color is used.
All documentation for this class is taken from ISO 32000-1, section 9.3.6
"Text Rendering Mode".