Install and validate fonts in Font Book on Mac - Apple Support
Installing a font is only half the solution. To type Khmer, you must also enable the Khmer input keyboard: install khmer font on mac
Do not download random "Khmer font.exe" files from Facebook groups. Stick to Google Fonts or the official Khmer OS project. Install and validate fonts in Font Book on
Installing a Khmer font on a Mac takes less than 60 seconds once you know where to look. The golden rules are: install khmer font on mac