// make instance of TPdfDictionary and register to Xref table.
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  // adding element to the dictionary.
  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, FIXED_WIDTH_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Courier'));

  // create "Width" table of the font.
  FWidths := TPdfArray.CreateNumArray(AXref, FIXED_WIDTH_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ FixedWidthBold }
constructor TPdfFixedWidthBold.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, FIXED_WIDTH_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Courier-Bold'));

  FWidths := TPdfArray.CreateNumArray(AXref, FIXED_WIDTH_BOLD_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ FixedWidthItalic }
constructor TPdfFixedWidthItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, FIXED_WIDTH_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Courier-Oblique'));

  FWidths := TPdfArray.CreateNumArray(AXref, FIXED_WIDTH_ITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ FixedWidthBoldItalic }
constructor TPdfFixedWidthBoldItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, FIXED_WIDTH_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Courier-BoldOblique'));

  FWidths := TPdfArray.CreateNumArray(AXref, FIXED_WIDTH_BOLDITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ Arial }
constructor TPdfArial.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, ARIAL_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Helvetica'));

  FWidths := TPdfArray.CreateNumArray(AXref, ARIAL_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ Arial-Bold }
constructor TPdfArialBold.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, ARIAL_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Helvetica-Bold'));

  FWidths := TPdfArray.CreateNumArray(AXref, ARIAL_BOLD_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ Arial-Italic }
constructor TPdfArialItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, ARIAL_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Helvetica-Oblique'));

  FWidths := TPdfArray.CreateNumArray(AXref, ARIAL_ITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ Arial-BoldItalic }
constructor TPdfArialBoldItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, ARIAL_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Helvetica-BoldOblique'));

  FWidths := TPdfArray.CreateNumArray(AXref, ARIAL_BOLDITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ TPdfTimesRoman }
constructor TPdfTimesRoman.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, TIMES_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Times-Roman'));

  FWidths := TPdfArray.CreateNumArray(AXref, TIMES_ROMAN_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ TPdfTimesBold }
constructor TPdfTimesBold.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, TIMES_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Times-Bold'));

  FWidths := TPdfArray.CreateNumArray(AXref, TIMES_BOLD_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ TPdfTimesItalic }
constructor TPdfTimesItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, TIMES_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Times-Italic'));

  FWidths := TPdfArray.CreateNumArray(AXref, TIMES_ITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ TPdfTimesBoldItalic }
constructor TPdfTimesBoldItalic.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, TIMES_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Times-BoldItalic'));

  FWidths := TPdfArray.CreateNumArray(AXref, TIMES_BOLDITALIC_W_ARRAY);
  FFont.AddInternalItem('Widths', FWidths);

  SetData(FFont);
end;

{ TPdfScript }
constructor TPdfScript.Create(AXref: TPdfXref; AName: string);
var
  FWidths: TPdfArray;
  FFontDescriptor: TPdfDictionary;
  FFont: TPdfDictionary;
begin
  inherited Create(AXref, AName);
  FFont := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFont);

  AddStrElements(FFont, TYPE1_FONT_STR_TABLE);
  AddIntElements(FFont, SCRIPT_INT_TABLE);
  FFont.AddItem('BaseFont', TPdfName.CreateName('Script'));

  FFontDescriptor := TPdfDictionary.CreateDictionary(AXref);
  AXref.AddObject(FFontDescriptor);

  AddStrElements(FFontDescriptor, SCRIPT_DISC_STR_TABLE);
  AddIntElements(FFontDescriptor, SCRIPT_DISC_INT_TABLE);
  FFontDescriptor.AddItem('FontBBox',
             TPdfArray.CreateNumArray(AXref, SCRIPT_BBOX));
  FFont.AddItem('FontDescriptor', FFontDescriptor);

  FWidths := TPdfArray.CreateNumArray(AXref, SCRIPT_W_ARRAY);
  FFont.AddItem('Widths', FWidths);

  SetData(FFont);
end;

initialization

  RegisterClassAlias(TPdfFixedWidth, 'FixedWidth');
  RegisterClassAlias(TPdfFixedWidthBold, 'FixedWidth-Bold');
  RegisterClassAlias(TPdfFixedWidthBoldItalic, 'FixedWidth-BoldItalic');
  RegisterClassAlias(TPdfFixedWidthItalic, 'FixedWidth-Italic');
  RegisterClassAlias(TPdfArial, 'Arial');
  RegisterClassAlias(TPdfArialBold, 'Arial-Bold');
  RegisterClassAlias(TPdfArialBoldItalic, 'Arial-BoldItalic');
  RegisterClassAlias(TPdfArialItalic, 'Arial-Italic');
  RegisterClassAlias(TPdfTimesRoman, 'Times-Roman');
  RegisterClassAlias(TPdfTimesBold, 'Times-Bold');
  RegisterClassAlias(TPdfTimesItalic, 'Times-Italic');
  RegisterClassAlias(TPdfTimesBoldItalic, 'Times-BoldItalic');
//  RegisterClassAlias(TPdfScript, 'Script');
//  RegisterClassAlias(TPdfSymbol, 'Symbol');

finalization

  UnRegisterClass(TPdfFixedWidth);
  UnRegisterClass(TPdfFixedWidthBold);
  UnRegisterClass(TPdfFixedWidthBoldItalic);
  UnRegisterClass(TPdfFixedWidthBold);
  UnRegisterClass(TPdfArial);
  UnRegisterClass(TPdfArialBold);
  UnRegisterClass(TPdfArialBoldItalic);
  UnRegisterClass(TPdfArialBold);
  UnRegisterClass(TPdfTimesRoman);
  UnRegisterClass(TPdfTimesBold);
  UnRegisterClass(TPdfTimesItalic);
  UnRegisterClass(TPdfTimesBoldItalic);
//  UnRegisterClass(TPdfScript);
//  UnRegisterClass(TPdfSymbol);

end.