Click the pull-down list of "Preview", then you are able to choose any pre-installed preview text including 14 basic character strings and 28 pangrams.
The pre-installed basic character strings are Font Name, Latin Letters, Uppercase Letters, Lowercase Letters, Tone Letters, Symbols, Arabic Numerals, Arabic Alphabet, Greek Alphabet, Cyrillic Alphabet, Hiragana, Katakana, Hangul Numerals, Chinese Numerals.
The pre-installed pangrams are Bulgarian(Български), Icelandic(íslenska), Polish(Polski), Korean(한국어), Danish(Dansk), German(Deutsch), Russian(Русский), French(Français), Finnish(suomi), Gaelic(Gàidhlig), Dutch(Nederlands), Catalan(Català), Lithuanian(lietuvių kalba), Romanian(Română), Norwegian(Norsk), Portuguese(Português), Japanese(日本語), Swedish(Svenska), Serbian(Српски), Slovene(Slovenščina), Thai(ไทย), Spain(Español), Hebrew(עברית), Greek(Ελληνικά), Italian(Italiano), English, Simplified Chinese(简体中文), Traditional Chinese(繁體中文).
Tips: Pangram
Pangram is a kind of sentence contains all of the letters in alphabet.It is mainly used to test the effects of tested fonts.