Windows comes with a few basic Khmer fonts (like DaunPenh or Khmer UI ), but adding custom ones is easy: your chosen font file. Unzip the folder if it’s a .zip file.
Mobile operating systems function differently than desktops. Generally, Android and iOS do not allow users to install system-wide fonts easily without "rooting" or "jailbreaking" the device, which poses security risks. install font khmer