Poppler Utils pdftohtml Turkish Character problem

Question

I am using pdftohtml package to convert PDF to HTML. However, some characters do not appear when I output HTML. I am giving the following parameters to the pdftohtml package. Normally, the font name in the PDF is Times New Roman. How can I solve this problem?

pdftohtml -s -enc UTF-8 -fontfullname -nomerge -noframes input.pdf output.html