# combining characters, 2 become 1

**URL:** <https://forum.high-logic.com/t/combining-characters-2-become-1/3985>\
**Category:** FontCreator - Support\
**Created:** [October 14, 2013, 12:50am UTC](https://forum.high-logic.com/t/combining-characters-2-become-1/3985 "2013-10-14T00:50:07Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Bhikkhu\_Pesala](https://forum.high-logic.com/user_avatar/forum.high-logic.com/bhikkhu_pesala/32/9411_2.png) [@Bhikkhu\_Pesala](https://forum.high-logic.com/u/Bhikkhu_Pesala)\
**Post date:** [October 14, 2013, 4:47am UTC](https://forum.high-logic.com/t/combining-characters-2-become-1/3985/2 "2013-10-14T04:47:41Z")

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It’s called a an OpenType glyph substitution or ligature.

See [this tutorial](https://forum.high-logic.com/t/adding-opentype-features-using-fontcreator-7/3772/1) to learn how to do it in FontCreator 7. If you want your font to always make the substitute then use the [liga](http://www.microsoft.com/typography/otspec/features_ko.htm#liga) feature. If you usually want “th” to be displayed as “th” and only sometimes as a fricative, use the [dlig](http://www.microsoft.com/typography/otspec/features_ae.htm#dlig) feature.

Be aware that not all applications support OpenType glyph substitutions (GSUB).

If you don’t have FontCreator Professional or Standard Edition, it’s worth upgrading (see my [FontCreator Review](http://www.softerviews.org/FontCreator.html)), or it can be done using the OpenType compiler or VOLT.

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