[OpenType] TrueType-flavored ".otf"

[Ken Lunde]

All,

While we're on the subject of "Recommendations for OpenType Fonts," some of my recent work with TrueType has demonstrated that virtually all modern TrueType-capable environments no longer depend on or adhere to the "First Four Glyphs in Fonts" portion, specifically that GIDs 1 through 3 can be arbitrary glyphs. Only GID+0 (.notdef) must be present and must also function as the ".notdef" glyph. This reality brings TrueType in better line with PostScript-based fonts in which only GID+0 must be present and function as the ".notdef" glyph.

  http://www.microsoft.com/typography/otspec/recom.htm

-- Ken

On Jan 15, 2013, at 12:16 AM, Erwin Denissen <erwin.denissen at high-logic.com> wrote:

> Message from OpenType list:
> 
> 
> According to "Recommendations for OpenType Fonts", taken from the 
> Microsoft Typography website:
> 
> Fonts containing TrueType outlines that have OpenType layout tables 
> should use the .OTF extension when backward compatibility is not an issue.
> 
> This recommendation first appeared over ten years ago, so theoretically, 
> people who use a recent O.S. along with software that is not that old, 
> should not have any backward compatibility issues.
> 
> Regards,
> 
> Erwin
> 
> 
> On 1/14/2013 8:12 AM, Nick Shinn wrote:
>> Message from OpenType list:
>> 
>> 
>> 1. In order to reduce font proliferation in a large typeface family, and
>> 
>> 2. Because the TrueType fonts look better on screen,
>> 
>> I am considering publishing only TrueType-flavored ".otf" fonts.
>> 
>> I will make these by generating ".ttf" fonts, and changing the font file suffix to ".otf"
>> 
>> Are there any technical issues?
>> 
>> 
>> 
>> _Nick Shinn
>> 
>> 
>> 
>> 
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