The original “Nida” font family was created prior to the full standardization of Khmer Unicode. Nida 2.0 is an older, partially Unicode-compliant font. For modern systems, KHMER OS Battambang , Khmer Mondulkiri , or Khmer Muol are recommended. However, if you specifically need Nida 2.0 for legacy document compatibility, follow this guide.
For mobile users, the KhmerUnicodeLayout on SourceForge adds NiDA support for external physical keyboards. Key Features and Benefits Khmer (NIDA) Basic keyboard - Keyman khmer unicode nida 2.0 download
Under Keyboards, click and choose Khmer (NiDA) . The original “Nida” font family was created prior