Pro evalution Bug as it seems

hello
i have downloaded pd4ml pro evaluation to test it before i buy it … for me i need to write arabic and english PDFs but i am facing a strange issue with the header when i try to write arabic into it . arabic is never shown on the header but it shows on the rest of the document …. please help me why i cant see my arabic characters on the header and by the way i am using fonts.jar that you have placed on your forums

package ae.rwd.servlet;

import java.awt.Font;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.MalformedURLException;
import java.net.URL;
import org.zefer.pd4ml.PD4ML;
import org.zefer.pd4ml.PD4PageMark;

/**
*
* @author Anas
*/
public class Pdf {

public static ByteArrayOutputStream convertHtmlToPdf(String BodyUrl, String HeaderUrl) throws MalformedURLException, FileNotFoundException, IOException {

java.io.ByteArrayOutputStream fos = null;
PD4ML pd4ml = null;

URL url = new URL(BodyUrl);
// File file = new File("test.pdf");
fos = new java.io.ByteArrayOutputStream();
//   fos = new java.io.FileOutputStream(file);
pd4ml = new PD4ML();

PD4PageMark header = new PD4PageMark();
header.setHtmlTemplate(getHeader(HeaderUrl));
header.setAreaHeight(-1);
pd4ml.setPageHeader(header);

pd4ml.useTTF("java:fonts", true);
pd4ml.setDefaultTTFs("Arial", "Arial", "Courier New");
pd4ml.render(url, fos);

return fos;

}

private static String getHeader(String HeaderUrl) throws MalformedURLException, IOException {

URL url = new URL(HeaderUrl);
return convertInputStreamToString(url.openConnection().getInputStream());
}

private static String convertInputStreamToString(InputStream is) throws IOException, UnsupportedEncodingException {

if (is != null) {
Writer writer = new StringWriter();
char[] buffer = new char[1024];
try {
Reader reader = new BufferedReader(new InputStreamRead(is, "UTF8"));
int n;
while ((n = reader.read(buffer)) != -1) {
writer.write(buffer, 0, n);
}
} finally {
is.close();
}
return writer.toString();
} else {
return "";
}
}
}