You can localize the ArcGIS Notebooks user interface by changing the display language of the ArcGIS Enterprise portal site your ArcGIS Notebook Server has been configured with.
For information on how to change your portal's display language, see Localize Portal for ArcGIS.
Localize the help documentation
The English help documentation is installed as part of the ArcGIS Notebook Server setup. To view the help in a language other than English, download and install the ArcGIS Notebook Server Help Language Pack from My Esri. The language pack contains help in the following languages: Arabic, Chinese (Simplified Han), French, German, Italian, Japanese, Korean, Polish, Portuguese (Brazil), Russian, and Spanish.
Install the ArcGIS Notebook Server Help Language pack via the command line
You can also install the ArcGIS Notebook Server Help Language Pack through the command line by using the following command:setup.exe /qn ST_LANGUAGE=<language>
Supported values for ST_LANGUAGE are as follows: ar,zh-CN,fr,de,it,ja,ko,pl,pt-BR,ru,es
Silently uninstall the ArcGIS Notebook Server Help Language pack
Silently uninstall the ArcGIS Notebook Server Help Language pack by using the following command: msiexec /x {03604EB4-CC5C-4272-8C32-0E284C1785E4} /qn