Last 3 days, I'm about to generate one of our reports to PDF with cfdocument but I don't know why our unicode font is missing as displaying "blank" in cfdocument even this font is in my pc. That's why I request my junior to investigate the problem to be solved. After a day, she found how to display unicode font in cfdocument.
First of all, we need to install font in our server first. Then, we need to go CFAdmin > Font Management and add installed font into coldfusion to be recognized. After all, we need to add fontembed="yes" in cfdocument as follow.