With the font I am using, the f touches a following closing quotation mark. I am præventing that from happening by periodically replacing all instances of f' with f\,'. Is there a better way to do this? I am already using XeTeX character classes for automatic language switching.

  • One could over limited domains of text make f active to behave automatically in the way desired. But active f would break any macro invocation containing an f and possibly other things, too. If this idea is appealing, I would create \kernfON and \kernfOFF to make f active and normal, respectively. Then you could turn it on before a text block, and turn it off afterwards. If you want to see an answer to this effect, please let me know. Oct 15, 2015 at 16:41
  • @StevenB.Segletes, I think having to do this all the time would be more cumbersome than automatic replacements, which could also be done with a script together with compilation (or built into a saving command in vim).
    – Toothrot
    Oct 15, 2015 at 17:30
  • Are you using an OpenType font? Then you could take care of this in a feature file. Oct 15, 2015 at 18:25
  • Forget my comment -- you say you are using XeTeX, which does not have feature files. Is it an option for you to use LuaLaTeX? Oct 15, 2015 at 18:54
  • @MarkvanAtten, I don’t know anything about LuaLaTeX, and at the moment I don’t have time for big rearrangements. Anyway, this is not a huge problem, just wanted to see if anyone had a more elegant solution than mine. (I suppose I could always modify the otf with Fontforge.)
    – Toothrot
    Oct 15, 2015 at 18:59

1 Answer 1


As explained in this answer you could use the XeTeX interchar classes to add custom kerning between f and '. I didn't find a font where f and ' touch, but the spacing between f and ' is fairly tight in Adobe Garamond Pro, and for a word ending in ff they do touch.

\setmainfont[Ligatures=TeX]{Adobe Garamond Pro}
`bluff' `surf'

`bluff' `surf'

enter image description here

Remark for people using Garamond: While looking for a font where the f touches the ' (and while previously search for a font where f and b touch) I found that EB Garamond has ligatures for all these combinations, which are a pain to kern by hand in other fonts. EB Garamond is great!

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