How to increase interval between glyphs

Description

I have one good font. It has just 9 pixels size. It looks good, but the interval between glyphs is too small. It is 0. I want to add one pixel between all glyphs.
Is there any way to add additional pixel by altering generated font file?

What LVGL version are you using?

v7.6.1

Font convertor goal is to display font exactly as designed. I wold not recommend to hack generated data.

Try to edit source in FontForge. It should have mass update somewhere, “righ-bearing”. Or may be “advance-widh” for monospace fonts.

@puzrin

Thank you! I will try FontForge.