TXT > GIF

procedure TxtToGif(txt, FileName: string);
var
  temp: TBitmap;
  GIF: TGIFImage;
begin
 
  temp := TBitmap.Create;
  try
    temp.Height := 400;
    temp.Width := 60;
    temp.Transparent := True;
    temp.Canvas.Brush.Color := colFondo.ColorValue;
    temp.Canvas.Font.Name := Fuente.FontName;
    temp.Canvas.Font.Color := colFuente.ColorValue;
    temp.Canvas.TextOut(10, 10, txt);
    Imagen.Picture.Assign(nil);
 
    GIF := TGIFImage.Create;
    try
      // Convert the bitmap to a GIF
      GIF.Assign(Temp);
      // Save the GIF
      GIF.SaveToFile(FileName);
      // Display the GIF
      Imagen.Picture.Assign(GIF);
    finally
      GIF.Free;
    end;
 
  finally
 
    temp.Destroy;
  end;
end;

Взято с Delphi Knowledge Base: https://www.baltsoft.com/