RadEditor is powerful enough to be used in any language you like: English, Bulgarian, Russian, Hindi, Vietnamese, Chinese, Japanese, Korean, etc.
You'll need to set the proper encoding in the aspx files with the editor. You can use UTF-8 encoding for the page, which will make the editor compatible with Western Europe languages, Cyrillic, Greek, Asian, Arab, Chinese, Japanese, etc characters.
the Telerik team
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