Thanks! But in my reports there are a lot of word to translate, I'd like to use the Internationalization! /tools/fckeditor/editor/images/smiley/msn/regular_smile.gif I have my file_en_EN.properties and other for other language and when a user of my aplllication want to print a report he views the report in his language. But how can I set the language from Java? I try to pass Locale in parameter: par.put("JRParameter.REPORT_LOCALE", locale); but it daoesn't work