Hinting is an approach to the aliasing problem in rendering scalable fonts. It's a process of applying special instructions to contours of letters that improve font appearance in small sizes or low resolutions.
ParaType offers a professional manual hinting of TrueType and OpenType/TrueType fonts.
There are 2 levels of quality that assure predefined "quality criteria" for certain character sets for definite point size ranges. In the table below you may see samples of Basic & High Levels of ParaType hinting together with autohinted fonts and fonts without hints.
Detailed information about criteria and specification of quality levels you may find in PDF presentation.
Presentation of ParaType TrueType Hinting Technology
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