Fontspec and EB Garamond: Cannot use EBGaramond12-Italic

ebgaramondfontspecluatexoptical-size

I dowloaded EB Garamond from https://github.com/georgd/EB-Garamond/releases/tag/nightly and copied all fonts, .otf and .ttf to ~/.fonts/e

The typeface contains different font files for the optical sizes 08pt and 12pt:

However, if I create a document which should contain EBGaramond12-Italic and compile it with LuaLaTeX, my PDF reader only shows the following fonts:

%!TEX program = lualatex
\documentclass{article}
\usepackage{fontspec}
% https://tex.stackexchange.com/a/79783/38905
\setmainfont[%
SizeFeatures={%
    {Size={-12},
        Font=*08-Regular,
        ItalicFont=*08-Italic},
    {Size={12-},
        Font=*12-Regular,
        ItalicFont=*12-Italic}
},
]{EB Garamond}

\begin{document}
    \normalsize
    ABCDEFGHIJKLMNOPQRSTUVWXYZ
    
    \huge
    ABCDEFGHIJKLMNOPQRSTUVWXYZ
    
    \normalsize
    \textit{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
    
    \huge
    \textit{ABCDEFGHIJKLMNOPQRSTUVWXYZ} 
\end{document}

This is how the PDF looks:

This was compiled with

This is LuaHBTeX, Version 1.15.0 (TeX Live 2022/TeX Live for SUSE Linux)
Development id: 7509

Why doesn't this work as expected and how can I work around this issue?

Best Answer

The fontspec manual says about using SizeFeatures with ItalicFeatures:

Interaction with other features For SizeFeatures to work with ItalicFeatures, BoldFeatures, etc., and SmallCapsFeatures, a strict heirarchy(sic) is required:
UprightFeatures =
  {
    SizeFeatures =
      {
        {
          Size = -10,
          Font = ..., % if necessary
          SmallCapsFeatures = {...},
          ... % other features for this size range
        },
        ... % other size ranges
      }
  }

While not explicitly mentioned, the same principle applies to ItalicFont: The font shape (like italic or upright) is applied first, before size processing, so you need to follow specific orders when combining them.

Here you can do this by moving the italic fonts into the SizeFeatures of the ItalicFeatures:

%!TEX program = lualatex
\documentclass{article}
\usepackage{fontspec}
\setmainfont[%
  SizeFeatures={%
    {Size={-12}, Font=*08-Regular},
    {Size={12-}, Font=*12-Regular},
  },
  ItalicFeatures={%
    SizeFeatures={%
      {Size={-12}, Font=*08-Italic},
      {Size={12-}, Font=*12-Italic},
    },
  },
]{EB Garamond}

\begin{document}
    \normalsize
    ABCDEFGHIJKLMNOPQRSTUVWXYZ
    
    \huge
    ABCDEFGHIJKLMNOPQRSTUVWXYZ
    
    \normalsize
    \textit{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
    
    \huge
    \textit{ABCDEFGHIJKLMNOPQRSTUVWXYZ} 
\end{document}

Related Solutions

[Tex/LaTex] way to use different local font files for different font size in fontspec

Since version 2.4 of fontspec, it has been possible to use different local fonts for different optical sizes, cf. the README.

The trick is to specify the different fonts with a Font option embedded under SizeFeatures, which in turn (and this is the crucial part) must be embedded under the options UprightFeatures, ItalicFeatures, and so on, cf. the fontspec manual under section 6.6.

Here's a minimal example:

\documentclass{article}
\usepackage{fontspec}
    \setmainfont{EBGaramond}[
        Path = ./fonts/,
        Extension = .otf,
        UprightFont = *12-Regular, % set EB Garamond 12 as default upright font
        UprightFeatures = {
            SizeFeatures = {
                {Size = -10.1,
                    Font = *08-Regular}, % use EB Garamond 08 for 10pt size and smaller
                {Size = 10.1-}}}, % use default upright font for larger than 10pt size
        ItalicFont = *12-Italic, % set EB Garamond 12 as default italic font
        ItalicFeatures = {
            SizeFeatures = {
                {Size = -10.1,
                    Font = *08-Italic}, % use EB Garamond 08 for 10pt size and smaller
                {Size = 10.1-}}}, % use default italic font for larger than 10pt size
        SmallCapsFeatures = {Letters = SmallCaps},
        Ligatures = {Common, TeX},
        Numbers = {Proportional, OldStyle}]
\begin{document}

EB Garamond 08: The quick brown fox jumps over the lazy dog 1234567890

\textit{EB Garamond 08: The quick brown fox jumps over the lazy dog 1234567890}

\large
EB Garamond 12: The quick brown fox jumps over the lazy dog 1234567890

\textit{EB Garamond 12: The quick brown fox jumps over the lazy dog 1234567890}

\end{document}

[Tex/LaTex] EB Garamond, and fontspec for “optical bold” with small caps

There’s a free version of the EB Garamond family on GitHub that comes in different weights. It’s based on EB Garamond 12, though, not 8. You can download regular, bold, italic and bold italic into your project directory or a subdirectory. Just Loading EB Garamond with the Path option to this subdirectory should work.

Then, create your font family using the Path, Scale, BoldFont, and BoldItalicFont options to \newfontfamily. For example, [Scale = MatchUppercase, Ligatures = {Common, TeX}, BoldFont = EBGaramond08-bold.otf, BoldItalicFont = EBGaramond08-BoldItalic.otf] (If you have such fonts.) Use Scale=MatchUppercase to make the heights match, then whatever Ligatures, Numbers and other options you want. You might also need BoldFeatures and BoldItalicFeatures. If you’re loading the specific font files you downloaded into a directory yourself, you probably want to load them by filename with Extension = .otf.

If your copy of the bold font is recent, it should contain small caps already, and they should just work. If you need to load a separate font, you might need to set the BoldFeatures = { SmallCapsFont = ... } option as well.

There is a free version of a Garamond No8 with small caps at Arkandis.

Best Answer

Related Solutions

[Tex/LaTex] way to use different local font files for different font size in fontspec

[Tex/LaTex] EB Garamond, and fontspec for “optical bold” with small caps

Related Question