Open Type Hinting

fermello78's picture

How does hinting work in Open Type Fonts?
If I have a Postscript font hinted through T1 hinting, when I generate an Open Type font the hinting goes together?

Thank you.

twardoch's picture


you haven't mentioned any tools that you are using, or the operating system you use. This makes it a bit difficult to answer your question.

My guess is that you're working with FontLab 4.6.

Also, you haven't mentioned the format that you're generating your OpenType font in -- whether it's OpenType PS aka OpenType-CFF (.otf) or it's OpenType TT/TrueType (.ttf).

If you're using FontLab to generate an OpenType PS font, the Type 1 hinting is automatically converted to CFF hinting. Both hinting systems are very similar, and the conversion is done by Adobe's high-quality FDK for OpenType code that is built into FontLab.

If you're using FontLab to generate an OpenType TT font, the Type 1 hinting is coverted into TrueType hinting instructions. This is a process done by a very advanced TrueType autohinting system developed by the FontLab team. You can control how this conversion is done using Preferences / TrueType / Autohinting Options. You can also do the conversion manually, by using the various actions from Tools / Transform Range.

Adam Twardoch
Fontlab Ltd.

fermello78's picture

Yes, you're right Adam, I'm working in Fontlab 4.6 (the place where I work has it), in Mac Osx 10.3 Panther.
Thank you.

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