PDF: Asian characters not rendering correctly

If you’ll find that some of asian (ie.: Japanese) characters are not rendered correctly in PDF output (ie,: appear as squares), this is likely caused by using font that does not support those characters. To fix this, install additional fonts to your HostBill PDF render engine.

To do so:

Download zip file above
Unzip its contents in hbf/libs/mpdf/ttfonts directory of your HostBill install
In your Document templates set new font to be used in document body, replace font-family at top of document (invoice) template html code from Arial to "Arial","sun-exta"

So from:

<style type="text/css"> body { font-family: Arial; } </style>

to:

<style type="text/css">
    body {
        font-family: "Arial","sun-exta";
    }
</style>