After encoding UTF-16, the string is broken if I want to use in iTextSharp

Firstly I am getting some informations from a text file, later these informations are added to pdf files' meta data. In the "Producer" section an error was occured about Turkish characters as ğ, ş. And I solved the problem via using UTF-16 like this:

write.Info.Put(new PdfName("Producer"), new PdfString("Ankara Üniversitesi Hukuk Fakültesi Dergisi (AÜHFD), C.59, S.2, y.2010, s.309-334.", "UTF-16"));

Here is the screenshot: Then, I am getting all pdf files with foreach loop and reading meta data and insert into SQLite database file. The problem occurs right here. Because when I want to get from pdf file and set to database file UTF-16 encoded string (Producer data), it arises strange characters like this:

I don't understand, why it occurs error.