User Guide

Editing Fonts
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Scale the font to 1000 UPM
Typically TrueType fonts have UPM (Units Per eM – the size of the grid on
which all glyph coordinates are defined) equal to 2048. Type 1 fonts have
UPM equal to 1000. You can change the UPM value at any time using the
FontLab commands, but if you turn this option on, UPM will be converted
during the font import.
Save TrueType hinting information
Leave this option on if you want to keep the original TrueType instructions
and outlines. FontLab will keep the imported TrueType data until you
change the glyph’s outline or hints. If you import a TrueType font to
rearrange glyphs or to add some new glyphs we highly recommend saving
the original TrueType hinting data.
Autohint imported font
To prepare an imported TrueType font for Type 1 editing and export, you
may ask FontLab to automatically make Type 1 hints for all the glyphs.
FontLab will use the current Type 1 hinting settings and will make hints for
TrueType or Type 1 outlines depending on the conversion setting (Convert
TrueType outlines to Type 1 outlines)
Decompose all composite glyphs
This option works exactly the same as for Type 1 fonts.
Import embedded bitmaps
If this option is on, FontLab will read all embedded bitmaps defined for the
source TrueType font. You can edit them using the TrueType hinting tool
and optionally export to TrueType format. Embedded bitmaps may help to
improve font readability at low point sizes and in some cases can be used
instead of TrueType hinting.
Store custom TrueType tables
Some TrueType fonts have additional tables that are not a part of the
TrueType or OpenType specification. If you want to import these tables
and have them exported unchanged when the font is saved, switch on this
option.
This feature is very useful if you are working with additional tools, like
Microsoft VOLT or VTT programs. If the “Store custom TrueType tables”
option is active, FontLab will not change or destroy tables that these tools
include in TrueType fonts.