ApiExamples.ExField.BarCodeReaderPdf C# (CSharp) Метод

        private BarCodeReader BarCodeReaderPdf(string filename)
        {
            //Set license for Aspose.BarCode
            Aspose.BarCode.License licenceBarCode = new Aspose.BarCode.License();

            licenceBarCode.SetLicense(@"X:\awnet\TestData\Licenses\Aspose.Total.lic");

            //bind the pdf document
            Aspose.Pdf.Facades.PdfExtractor pdfExtractor = new Aspose.Pdf.Facades.PdfExtractor();
            pdfExtractor.BindPdf(filename);

            //set page range for image extraction
            pdfExtractor.StartPage = 1;
            pdfExtractor.EndPage = 1;

            pdfExtractor.ExtractImage();

            //save image to stream
            MemoryStream imageStream = new MemoryStream();
            pdfExtractor.GetNextImage(imageStream);
            imageStream.Position = 0;

            //recognize the barcode from the image stream above
            BarCodeReader barcodeReader = new BarCodeReader(imageStream, DecodeType.QR);
            while (barcodeReader.Read())
            {
                Console.WriteLine("Codetext found: " + barcodeReader.GetCodeText() + ", Symbology: " + barcodeReader.GetCodeType());
            }

            //close the reader
            barcodeReader.Close();

            return barcodeReader;
        }