Delphi file conversion Base64

uses EncdDecd;

function FileToBase64(FileName: string): string;

var
  MemoryStream: TMemoryStream;
begin
  Result := '';
  MemoryStream := TMemoryStream.Create;
  try
    MemoryStream.LoadFromFile(FileName);
    Result := EncodeBase64(MemoryStream.Memory, MemoryStream.Size);
  finally
    MemoryStream.Free;
  end;
end;