public TrueType(final PdfObjectReader current_pdf_file,final String substituteFont){
  glyphs=new TTGlyphs();
  init(current_pdf_file);
  this.substituteFont=substituteFont;
}

public TrueType ( final PdfObjectReader current_pdf_file , final String substituteFont ) { glyphs = new TTGlyphs ( ) ; init ( current_pdf_file ) ; this . substituteFont = substituteFont ; }
get handles onto reader so we can access the file
