DTL FontMaster Manual1.1 PDF

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appendix iv: ufm file format
ttf
‘os2’ table
sTypoDescender
New typographic descender. One good source is the
Descender value from an afm file
ttf
‘os2’ table
sTypoLineGap
New typographic line gap. Typical values average 7–10% of
units per em
pfm
exttextmetric
etmUnderlineOuset
Ouset downward from the baseline where the top of a single
bar should appear
afm
Global font information
UnderlinePosition
Recommended distance from the baseline for centering
underlining strokes. This is the y coordinate of the center of
the stroke
t1
FontInfo dictionairy
Underline position
As afm
ttf
‘post’ table
Underline Position
As afm
afm
writing direction metrics
UnderlineThickness
Recommend stroke width for underlining
t1
FontInfo dictionary
UnderlineThickness
As afm
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TypoDescender
TypoLineGap
UnderlineOffset
UnderlinePosition
UnderlineThickness