A: Adobe supports only major global languages via the full interaction pack. For rare languages, you must rely on the font pack for display only, or use a third-party PDF tool.
Go to (Windows) or Acrobat Reader (macOS) in the top menu. Click on Preferences (or press Ctrl + K / Cmd + K ). Select Language from the Categories list on the left side. Locate the Application Language dropdown menu. Choose one of the following options: adobe acrobat reader dc language pack