Reply To: invoice not translatable?

Hi,
I try myself to translate with translation short codes like [:en_EN] text [:it_IT] text, and the tags are in the pdf file displayed like a text not changes when user is locale en_EN or locale it_IT.

This is a bug? or the invoice can`t be translated?
Another problem is how can I change the logo in invoice, on wordpress 3.5.1 this can`t be done anymore.