Hi Anoop.
Thank you for sharing the files.
I am able to reproduce the issue regarding the shadow effect and an issue has been registered in our issue tracking system with issue id: SLIDESJAVA-34369. You will be notified via this forum thread regarding updates against the reported issue.
However, I am unable to notice issue regarding the font using the following code.
String[] _fontDir = new String[] { "C:\\Data\\HGRSGU_2" };
//Load the custom font directory fonts
FontsLoader.loadExternalFonts(_fontDir);
//Do Some work and perform presentation/slides rendering
PresentationEx presentation = new PresentationEx("C:\\Data\\HGRSGU_2\\Smartdocs.pptx");
presentation.save("C:\\Data\\HGRSGU_2\\Smartdocs.pdf", SaveFormat.Pdf);
//Clear Font Cachce
FontsLoader.clearCache();
Please elaborate a little regarding the issue to further investigate it.
Thanks & Regards,