I am using Class TCPDF which is in this site
https://sourceforge.net/ ,
and find this example for Arabic:
https://tcpdf.org/examples/example_018/, it works well,
the class uses three files: "aealarabiya.ctg, aealarabiya.php and aealarabiya.rar", to change to another font " jannaltregular.ttf" it is necessary to convert into three file: " .ctg, .php and .rar " in this site : http: //fonts.snm-portal.com/
I did it but problem displays "square question mark" instead of "Arabic letter" between the words.
someone can help me?