/MAGNIFICATION=factor
When a CDA document is output, it is scaled to be the same size
as the actual FAX message (approximately 8.5 by 10.5 inches).
This corresponds to a magnification of 1 (a scaling by a factor
of unity). With the /MAGNIFICATION qualifier, the document may be
scaled upwards or downwards by a prescribed scaling factor. For
instance, to reduce the document to half size, use the qualifier
/MAGNIFICATION=0.5. This qualifier may not be used in conjunction
with the /NOCDA qualifier.