|Extension TIFF Tag ModeNumber|
TIFF Tag Reference
TIFF Tag ModeNumber
Used in the TIFF-FX standard, denotes the mode of the standard specified by the FaxProfile field.
A value of 0 indicates Mode 1.0. The tag is used in Mixed Raster Content mode.
The tag is described to be primarly used inside a GlobalParameters IFD, although the specification says that 'each field in the GlobalParametersIFD is a TIFF field that is legal in any IFD'.