# Resizing fonts and Changing Units per Em Values

**URL:** <https://forum.high-logic.com/t/resizing-fonts-and-changing-units-per-em-values/334>\
**Category:** FontCreator - Tutorials and Solutions\
**Created:** [August 18, 2003, 9:21am UTC](https://forum.high-logic.com/t/resizing-fonts-and-changing-units-per-em-values/334 "2003-08-18T09:21:27Z")\
**Posts on this page:** 1\
**Showing post:** 11

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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:** [May 14, 2016, 7:07pm UTC](https://forum.high-logic.com/t/resizing-fonts-and-changing-units-per-em-values/334/11 "2016-05-14T19:07:37Z")

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_Updated for FontCreator 9.1_

To scale a font up by 10%

- Edit, Select Composites
- Edit, Invert Selection
- Font, Properties (shortcut Alt+Enter), General, Layout, (formerly in Format, Settings, Header), and set funits/em to 1843 (assuming it is now 2048)
- Edit, Copy
- Font, Properties (shortcut Alt+Enter), General, Layout, (formerly in Format, Settings, Header), and set funits/em back to 2048
- Edit, Paste

Composites may need to be recomposed and kerning may need to be adjusted. Use Autohinting on export to replace the original hinting. To recompose composites:

- Font, Properties, General, Content and Layout, Version 3 or higher,
- Metrics, Calculate
- General, Calculate. Manually change values for Strikeout and Underline
- Edit, Select Composites
- Edit, Make Empty
- Edit, Complete Composites

To scale a font down from 14 pt to 13 pt

- Edit, Select Composites
- Edit, Invert Selection
- Font, Properties, General, and set funits/em to 2206 (2048\*14/13) (assuming it is now 2048)
- Edit, Copy
- Font, Properties, General, and set funits/em back to 2048
- Edit, Paste, etc.

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