Latvian encoding for PDFs in PrestaShop - Need UTF8

[GaisaMeritajs]

Hi,

I've been trying to get the PDFs to show properly when visitors enter details using Latvian characters, but cannot find the right encoding in the Back Office preferences (Preferences > PDF).

UTF-8 would be the best, but I guess one of the aging other things can be used too... just cp1257 doesn't work, and nor does ISO-8859-4, which according to Wikipedia, should: http://en.wikipedia.org/wiki/Character_encoding

So what do I do?

Right now, depending on the encoding set, I get the wrong characters. For example:

ISO-8859-1:
R??ina adrese

cp1257:
Rçíina adrese

ISO-8859-4:
Roóina adrese

When it's meant to be, quite simply:
Rēķina adrese

I'm attaching a picture showing the choices that are available to me.