The repositories below contain Japanese-language or localization documentation for the named app. That is evidence for those repositories at the linked revision; it is not evidence that every ArtCraft product, release, or platform has equivalent Japanese support.
The PhotoCraft UI-design document describes Japanese localization and input considerations.
Read the repository document ↗The PdfCraft repository includes localization documentation that identifies Japanese interface support.
Read the repository document ↗For an exact release, check its release notes and try your own input method and document samples. UI translations, IME behavior, and file handling can vary by application and version.