The current font size being used. If matching is called during text selection, this may be null.
The font name as declared in the PDF (e.g., "Helvetica-BoldOblique"). Rarely we can't find any name information.
OptionalsubsetInformation about subset fonts detected in the PDF.
Extracted base font name without prefix (e.g., "Helvetica")
Full font name with subset prefix (e.g., "ABCDEF+Helvetica")
Font information extracted from PDF during content editing.