if ImageEnView1.ImageCount > 1 then
begin
    PDf_TIT := 'TATA';
    TheList := TStringlist.Create;
    for i :=0 to length(ImageEnView1.MultiSelectedImagesList)-1 do
    begin
       if fileexists(ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]]) then
          TheList.Add(ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]] );
    end;

    iev:= TIEMultiBitmap.Create();
    iev.FillFromList(TheList);
    iev.CreateSearchablePDF(FileName , PDf_TIT ) ;

    iev := nil;
    TheList.Free;
end;

  // look for ?.traineddata directory
  langCode := string(IEVisionLanguageNameToCode(cmbLanguage.Text));
  langPath := IncludeTrailingBackSlash(ExtractFilePath(Application.ExeName));
  if LanguageExistsInFolder(langCode, langPath) then
  begin
    // Language is in exe path. Pass as '' to support for paths with non-ansi characters
    SetCurrentDir( langPath );
    langPath := '';
  end
  ...

procedure Tmain1.BtnExportutuClick(Sender: TObject);
var
  typerech, compression : integer;
  FileName, PDf_TIT: string;
  i, p: integer;
  bmp : tiebitmap;
  iev:TIEVisionSearchablePDFGenerator;
  IEBitmap : TIEVisionImage ;
  newfilename,  fichier : string;
  TheList : TStringlist;
  langPath: string;
  langCode: string;
  old_CurrentDir : string;
begin
 //https://www.imageen.com/help/index.php?topic=TIEVisionSearchablePDFGenerator&m=2
 //    (Size: iepA4;      Name: 'A4';         Width: 595;  Height: 842),

//  ImageEnView2: TImageEnDBView;
//  ImageEnView1: TImageEnMView;
{
      in to formCreate :
      fDBMBitmap : TIEDBMultiBitmap;
      fDBBitmap : TIEDBBitmap;

      ImageEnView1.SetModernStyling;
      fDBMBitmap := TIEDBMultiBitmap.create( udm1.DS_fi_Img , '', 'CHEMIN_CPL', dmAllRecords ); //The file name is complete in field CHEMIN_CPL

CHEMIN_CPL is like '\\C5\G\GHSC\F-ZBPA\NI 000007\BV 050H\0_20230421143226408_000244.JPG'

      fDBMBitmap.ImagePath             := '';
      fDBMBitmap.FollowDBCursor        := True;
      fDBMBitmap.AutoLoad              := true;
      fDBMBitmap.mode                  := dmAllRecords ;

      ImageEnView1.SetExternalMBitmap( fDBMBitmap );
      imageEnView1.DefaultTopText := iedtCustom;
}

   old_CurrentDir := GetCurrentdir ;
   FwaitForm.wait(true);
    try
        if ImageEnView1.ImageCount > 0 then
        begin

            langCode := string(IEVisionLanguageNameToCode(IEOCRLanguageList[OCR_English_language].DisplayName));
            langPath := IncludeTrailingBackSlash(ExtractFilePath(Application.ExeName));

            if LanguageExistsInFolder(langCode, langPath) then
            begin
              SetCurrentDir( langPath );
              langPath := ''; // Language is in current path (support for paths with non-ansi characters)
            end
            else
            begin
               ShowMessage(' Language is in current path (support for paths with non-ansi characters) : not found');
               Exit;
            end;

            JvSaveDialog1.FileName := udm1.fi_Img.FieldByName('REG').AsString+'-'+udm1.fi_Img.FieldByName('CHECKS_NUMBER').AsString+'-'+udm1.fi_Img.FieldByName('WORK_ORDER').AsString+'.pdf';
            JvSaveDialog1.Execute;
            FileName := JvSaveDialog1.FileName;

            if FileName <> '' then
            begin
                ShowTempHourglass();
                PDf_TIT := udm1.fi_Img.FieldByName('REG').AsString+' - '+udm1.fi_Img.FieldByName('CHECKS_NUMBER').AsString+' - '+udm1.fi_Img.FieldByName('WORK_ORDER').AsString ;
                iev := IEVisionLib.createSearchablePDFGenerator(PAnsiChar(AnsiString(langPath)), PAnsiChar(AnsiString(langCode)) );
                iev.beginDocument( PWideChar( FileName ), PAnsiChar(AnsiString(PDf_TIT )));

                if length(ImageEnView1.MultiSelectedImagesList) = 0 then
                   ImageEnView1.SelectAll;

                if ImageEnView1.ImageCount > 1 then
                begin
                    TheList := TStringlist.Create;
                    for i :=0 to length(ImageEnView1.MultiSelectedImagesList)-1  do
                    begin
                       if fileexists(ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]]) then
                          TheList.Add('File found ' + ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]] )
                       else
                          TheList.Add('File not found ' + ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]] );
                    end;
                    for i :=0 to length(ImageEnView1.MultiSelectedImagesList) -1  do
                    begin
                       if fileexists(ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]]) then
                       begin
                          ImageEnView1.SelectedImage := i;
                          Application.ProcessMessages;
                          IEBitmap := ImageEnView1.IEBitmap.GetIEVisionImage();
                          iev.addPage(IEBitmap, ievPDFImgFmt_AUTO) ;
                          if cxMemo1.Visible then
                            cxMemo1.lines.Add(ImageEnView1.ImageFileName[ImageEnView1.MultiSelectedImages[i]] );
                       end;
                    end;
                    iev.endDocument();

                    iev := nil;
                    TheList.Free;
                end;
            end;
        end
        else
            showmessage('no image displayed');
        application.processmessages;
    except
        on E: Exception do
        begin
           if E is EAccessViolation then
            MessageDlg('An error was encountered processing this image. Ensure you are using the latest version of the IEVision plug-in.'+e.message+rc+TheList.text, mtError, [mbOK], 0)
          else
            MessageDlg('An error was encountered processing this image: ' + e.message, mtError, [mbOK], 0);
        end;
    end;
    SetCurrentDir(old_CurrentDir);
  FwaitForm.wait(False);
end;

            if LanguageExistsInFolder(langCode, langPath) then
            begin
              SetCurrentDir( langPath );
              langPath := ''; // Language is in current path (support for paths with non-ansi characters)
            end
            else
            begin
               ShowMessage(' Language is in current path (support for paths with non-ansi characters) : not found');
               Exit;
            end;