This looks like it's a translation for the entirety of tinyMCE, not just the imageupload plugin. This file contains all the strings used by this plugin, so if you want the Japanese translations included in this plugin, please translate those, and only those.
Hi.
This looks like it's a translation for the entirety of tinyMCE, not just the imageupload plugin. This file contains all the strings used by this plugin, so if you want the Japanese translations included in this plugin, please translate those, and only those.