Direction of the characters and "Yen-sign" when converting to image

Hello team,

Thank you for your support. (27.4 KB)
3.jpg (95.3 KB)

I have converted PQ2333.pptx to image using Aspose.Slides 17.8 however I found 2 errors in the page 3.

  1. direction
  2. “Yen-sign” has changed to “backslash-sign”

This is my code.

  public static List<string> ConvertPowerPointToImage(string docName, MemoryStream docStream, Dictionary<string, string> config)
            var pageInfoList = new List<string>();

            // Get config setting
            string docRootDir = config["DocumentsFilePath"];
            int dpi = int.Parse(config["ImageDPI"]);
            int thumbMaxH = int.Parse(config["ThumbnailMaxHeight"]);
            int thumbMaxW = int.Parse(config["ThumbnailMaxWidth"]);
            int maxPageNum = int.Parse(config["DocumentMaxPageNum"]);
            float readScale = float.Parse(config["ImageReadScale"]);

            // Create images directory
            string pageImgDir = docRootDir;
            if (!Directory.Exists(pageImgDir))

            // Get the encoder of JPEG
            ImageCodecInfo jpgEncoder = GetCodecInfo();
            //EncoderParameters encParams = GetEncoderParams();

            EncoderParameters encParams = GetEncoderParams(int.Parse(config["ImageJpegQuality"]));

            // Instantiate the License class
            Aspose.Slides.License license = new Aspose.Slides.License();

            // Convert .doc and .docx file to PDF.
            Presentation presen = new Presentation(docStream);

            for (int i = 0; (i < presen.Slides.Count) && (i < maxPageNum); i++)
                ISlide slide = presen.Slides[i];

                // Export image file
                string imgFile = string.Format("{0}_{1:D8}.jpg",
                        Path.GetFileNameWithoutExtension(docName), i+1);
                string imgPath = Path.Combine(pageImgDir, imgFile);
                string thumbFilename = string.Format(@"{0}_thumb.jpg", Path.GetFileNameWithoutExtension(imgPath));
                string thumbPath = Path.Combine(Path.GetDirectoryName(imgPath), thumbFilename);
                using (Bitmap bitmap = slide.GetThumbnail(readScale, readScale))
                    bitmap.SetResolution(dpi, dpi);
                    bitmap.Save(imgPath, jpgEncoder, encParams);

                // Add  PageInfo List

            // return results with flag of max page limit over
            return pageInfoList;

They are parameters.

            // Get config setting
               Create Appseting key value for async function
               Dictionary<string, string> config = new Dictionary<string, string>();

               config.Add("DocumentsFilePath", outDir);
               config.Add("ImageDPI", "96");
               config.Add("ImageReadScale", "1.25");
               config.Add("ThumbnailMaxHeight", "252");
               config.Add("ThumbnailMaxWidth", "210");
               config.Add("ImageJpegQuality", "80");
               config.Add("DocumentMaxPageNum", "1000");

Thank you,


I have observed the issue shared by you and have been able to observe the issue specified. An issue with ID SLIDESNET-39349 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be automatically notified once the issue will be fixed.