Issue with TTF embedding.

Hi,

I am using pd4ml 350 pro version, I am performing some trials to verify if pd4ml can embed a GDT font and display correct symbols inside pdf.
I followed steps mentioned in section “7.1 TTF embedding” to configure fonts directory.

I am trying to convert following html to PDf with Ascii and Unicode character values for one of the GDT symbol,
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body><table width=100% style="width:100%; border:1px solid black; text-align:center; font-family:Arial; font-size:10"><tr><td><font style="font-family:'GDTEX';">ASCII : é Unicode : é</font></td></tr></table></body></html>

part of sample java code I wrote to test is as follows,

String strFilePath = "D:/tempGDt.pdf";
File output = new File(strFilePath);
java.io.FileOutputStream fos = new java.io.FileOutputStream(output);
StringBuffer sbTemp = new StringBuffer("<With above sample html>");

PD4ML html = new PD4ML();
html.enableDebugInfo();
html.setHtmlWidth( 870 );
html.setPageSize(PD4Constants.A4);
html.setPageSize( new java.awt.Dimension(842, 595) );
html.setPageInsets( new java.awt.Insets(30, 30, 30, 30) );
html.enableImgSplit(true);
html.interpolateImages(false);
html.useAdobeFontMetrics(true);
html.useTTF( "D:/fonts", true );

StringReader sr = new StringReader(sbTemp.toString());
html.render(sr, fos);
fos.close();

When above code is executed, a PDF file is generated with blank pages. Following is the debug log,

version: PD4ML 350 Pro
not yet in cache: file:D:/fonts/pd4fonts.properties
new parse attempt with: UTF8
not yet in cache: file:D:/fonts/arial.ttf
read 'arial' from file:D:/fonts/arial.ttf
not yet in cache: file:D:/fonts/gdtex.ttf
read 'gdtex' from file:D:/fonts/gdtex.ttf
done in 278ms.

Can anyone please answer whats going wrong, or if I am missing anything.
I have tried same stuff with latest released pro trial, it also outputs a blank pdf without any hint in debug log as whats going wrong.