-I'm using Civicrm 5.11.0, Joomla 3.8.0, Windows 7
-SQL is encode in utf8
-Chinese characters in phpmysql are readable
-Chinese characters in Civicrm are readable
-Civicrm saves data in utf8, so import or export contacts in Chinese is fine
-CiviMail can send email with Chinese characters
-Win 7 can read Chinese characters and save word documents in pdf as Chinese
-but when I go to Individual>Contribution>Print Invoice as PDF, they all turn to question marks (one character, one question mark)
-put Chinese characters in invoice templates, turns to question marks too
I tried to change this code
$dompdf->load_html( $html );
to this
$dompdf->load_html( utf8_decode( $html ) );
(from ../civicrm/CRM/Utils/PDF/Utils.php)
but nothing happened, still question marks.
What could be the cause of this?
I also tried this on demo site, same results display.