[Libreoffice-bugs] [Bug 64509] CONFIGURATION: Enhance Font Substitution Table

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=64509

Ulrich Windl <Ulrich.Windl at rz.uni-regensburg.de> changed:

           What    |Removed                     |Added
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                 CC|                            |Ulrich.Windl at rz.uni-regensb
                   |                            |urg.de

--- Comment #15 from Ulrich Windl <Ulrich.Windl at rz.uni-regensburg.de> ---
The problem with a font substitution table is that, while fonts are similar,
they are not the same. Even if the glyphs look identical, there my be
significant differences in kerning information.
So what the use typically sees if a font is missing and was substituted, is an
ugly or broken layout (caused by different kerning, character spacing, or line
spacing). (You can see this effect in PDFs also where the kerning information
is basically hard-coded (glyphs positioned absolutely), but the fonts can be
missing.)
My personal preference over a manually edited (and probably huge) font
substitution table is using typeface information (like PANOSE
(https://en.wikipedia.org/wiki/PANOSE)) to find ou which fonts are similar to
each other. I don't know whether Windows or other OSes support it, but I
remember that Smalltalk-80 had it in the 80ies ;-) Of course the usefulness of
typeface metadata depend on its accuracy. If people just copy it blindly from
another font, it will be hardly useful...

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