请看下面的图片http://dev.mosaicware.pl/tmp/PDF-utf-problem.png
您可以看到 PL 和 RO 字符看起来很奇怪，它们在网页上看起来很好。有什么线索吗？我使用了 arialunicid0 字体和以下代码（DB 中的字符为 UTF-8）：
$pdf = new models_PdfUtf(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', true);
$pdf->SetFont('arialunicid0'); $pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE, PDF_HEADER_STRING);
$pdf->SetAuthor($problem . ' ' . $problem['user_surname']); $pdf->SetTitle($problem['problem_title']);
$pdf->SetSubject($problem['problem_title']);
$pdf->Output('export.pdf','I');
$pdf = new models_PdfUtf(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', true);
$pdf->SetFont('arialunicid0');
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE, PDF_HEADER_STRING);
$pdf->setPrintFooter(false);
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
$pdf->AddPage();
$pdf->writeHTML($c, true, 0, true, 0);
$pdf->SetAuthor($problem . ' ' . $problem['user_surname']);
$pdf->SetTitle($problem['problem_title']);
$pdf->SetSubject($problem['problem_title']);
$pdf->Output('export.pdf','I');