Missing the image which size is huge in PDF after convert word to PDF

Dear guy
My team encountered a new problem. After we converted the word document into PDF, the original large pictures in the document could not be displayed in PDF, and bellow attachment was original word document and converted PDf .

bigimgpdf.zip (5.3 MB)

bigimgpdf.docx.pdf (26.8 KB)

bellow is the code :

      var options = new Aspose.Words.Saving.PdfSaveOptions();
        options.DownsampleOptions.Resolution = 500;
        Aspose.Words.Document doc = new Aspose.Words.Document(@"D:\bigimgpdf.docx");
        doc.Save("d:\\bigimgpdf.docx.pdf", options);

@wengyeung,

For the sake of correction, we have logged this problem in our issue tracking system with ID WORDSNET-22840. We will further look into the details of this problem and will keep you updated here on the status of correction. We apologize for your inconvenience.

The issues you have found earlier (filed as WORDSNET-22840) have been fixed in this Aspose.Words for .NET 21.11 update also available on NuGet.