The home page says "Can be launched with any ASCII superset text encoding (such as latin1 or UTF-8), so it can be used for Russian, Japanese, Korean, Chinese, etc... (provided that you select the appropriate encoding at installation)", but there was no relevant installation option I could find. The installer initial message ends with what seems to be the more accurate statement: "It has i18n support for English, French, German, Polish, Portuguese, Russian and Spanish languages." I find that text with accents and such can be stored properly, but that Japanese and Chinese symbols are replaced in the ".tex" file with "???".
You have launched the installer, and then you get at the « JpicEdt installation directories… » panel, then you can create one or more laucher scripts (in the « shortcut directories » area). Typically you would create one shortcut for each encoding.
Click on the « Advanced » button to select which character encoding the shortcut will launch jPicEdt with.
Sorry for it is not well documented. My intention was to allow selecting a different application icon for each encoding, that would be more practical if you have several customers handled in parallel, and for some of them you make, say Latin-9 encoding, and for some others it is say KOI-8R…
Please feel free to come back to me if any more questions.
Last edit: Vincent Belaïche 2018-06-27