Measurements and units
The function insert_signature supports measurements in a number of units:
- centimeters (cm)
- inches (in or '"')
- points (pt)
- English Metrical Unit (emu) -- base unit internally used by Microsoft Word
The unit must always be explicitly specified. No spaces are allowed between number and unit. Fractions are always indicated with a decimal point. The following measurements are equivalent.
2.54cm = 1.0in = 1" = 72pt =914400emu
An empty string or a value of zero, such as 0cm, 0in, is considered
unspecified.