# Different Kerning for masters

**URL:** <https://forum.glyphsapp.com/t/different-kerning-for-masters/31548>\
**Category:** Glyphs\
**Tags:** kerning\
**Created:** [September 19, 2024, 8:23am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548 "2024-09-19T08:23:29Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Fabrice](https://forum.glyphsapp.com/letter_avatar_proxy/v4/letter/f/5fc32e/32.png) [@Fabrice](https://forum.glyphsapp.com/u/Fabrice)\
**Post date:** [September 19, 2024, 8:23am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548/1 "2024-09-19T08:23:29Z")

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Hello,

I have 2 master (Regular + Bold). I have set the kerning to let’s say (-60) between “oo”.  
On Regular it looks perfect, but on Bold it is too close and I would like to have a different kerning for the Bold version. Isn’t this possible?

Additionally, isn’t it possible to add arithmetics to the kerning? So I could relate to the a Glyph side bearing which is different to the Regular Master.  
Example: =H/-2

Thank you

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**Author:** ![SCarewe](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/scarewe/32/18952_2.png) [@SCarewe](https://forum.glyphsapp.com/u/SCarewe)\
**Post date:** [September 19, 2024, 8:38am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548/2 "2024-09-19T08:38:33Z")

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Kerning is done for each master individually, so just set different kerning in your Bold master.

Arithmetics are not possible for kerning.

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<div class="post-metadata">

**Author:** ![Fabrice](https://forum.glyphsapp.com/letter_avatar_proxy/v4/letter/f/5fc32e/32.png) [@Fabrice](https://forum.glyphsapp.com/u/Fabrice)\
**Post date:** [September 19, 2024, 9:19am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548/3 "2024-09-19T09:19:03Z")

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You’re right. Thank and sorry. It wasn’t obvious for me.

But this brings me to the another question.  
If I add some ‘new’ kerning pairs for ‘Regular’ they are not automatically added to the other master. Is there a way to automatically add them or to copy all kerning (or all missing) pairs from one master to another.

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<div class="post-metadata">

**Author:** ![jkutilek](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/jkutilek/32/29173_2.png) [@jkutilek](https://forum.glyphsapp.com/u/jkutilek)\
**Post date:** [September 19, 2024, 9:44am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548/4 "2024-09-19T09:44:19Z")

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You can use the Kerning Window (Windows \> Kerning) to copy pairs between masters. In your kerned master, select all and copy, then switch to another master and paste.

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<div class="post-metadata">

**Author:** ![GeorgSeifert](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/georgseifert/32/259_2.png) [@GeorgSeifert](https://forum.glyphsapp.com/u/GeorgSeifert)\
**Post date:** [September 19, 2024, 10:45am UTC](https://forum.glyphsapp.com/t/different-kerning-for-masters/31548/5 "2024-09-19T10:45:07Z")

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But usually, you do the kerning for all masters one by one.

Just make sure to fix the spacing first before you start kerning.