Конвертирование BMP -> WMF

Вариант 1:

Source: https://forum.sources.ru

procedure ConvertBMP2WMF
(const BMPFileName, WMFFileName: TFileName); 
var 
  MetaFile : TMetafile; 
  Bitmap : TBitmap; 
begin 
  Metafile := TMetaFile.Create; 
  Bitmap := TBitmap.Create; 
  try 
    Bitmap.LoadFromFile(BMPFileName); 
    with MetaFile do 
    begin 
      Height := Bitmap.Height; 
      Width  := Bitmap.Width; 
      Canvas.Draw(0, 0, Bitmap); 
      SaveToFile(WMFFileName); 
    end; 
  finally
                Bitmap.Free; 
    MetaFile.Free; 
  end; 
end;

Использование:

ConvertBMP2WMF('c:\mypic.bmp','c:\mypic.wmf')

Вариант 2:

Source: DelphiWorld 6.0 https://delphiworld.narod.ru/

procedure TForm1.Button1Click(Sender: TObject);
var
  m : TmetaFile;
  mc : TmetaFileCanvas;
  b : tbitmap;
begin
  m := TMetaFile.Create;
  b := TBitmap.create;
  b.LoadFromFile('C:.bmp');
  m.Height := b.Height;
  m.Width := b.Width;
  mc := TMetafileCanvas.Create(m, 0);
  mc.Draw(0, 0, b);
  mc.Free;
  b.Free;
  m.SaveToFile('C:.emf');
  m.Free;
  Image1.Picture.LoadFromFile('C:.emf');
end;