#30060

Take a look to the TTF fallback tables on the page:
http://pd4ml.com/cookbook/pd4ml_pdf_true_type_fonts.htm

In principle you may use the font names (ignoring their original meanings) to define a chain of CJK TTF fonts, to be used to find a particular glyph, missing in the main font:

[language=java:1nn401ks]MS Gothic=cjk_font_option1.ttf
MingLiU=cjk_font_option2.ttf
SimSun=cjk_font_option3.ttf
Mangal=cjk_font_option4.ttf
David=cjk_font_option5.ttf
Gulim=cjk_font_option6.ttf  [/language:1nn401ks]