We Aspose to convert the bulk scanned files into a single pdf document. We use Aspose barcode reader to read the information contained in each QR code.
Each page of the file is created by Aspose as an image.
Sometimes a QR code is not found by the barcode reader, maybe it is too faint, too small, or perhaps it was resized prior to insertion into the document.
Is there ANY way we can identify that a barcode is there but just couldn't be read?
Thanks -
Tim
Hi Tim,
...The following is an excerpt of the code. If all the barcodes are readable, then the original pdf file is successfully split into separate pdf documents. If a barcode inside the document is not recognized, then it will just be included with the document that started with a valid barcode.
***********************************************************************
////bind the pdf document
Aspose.Pdf.Facades.PdfExtractor pdfExtractor = new Aspose.Pdf.Facades.PdfExtractor();
pdfExtractor.BindPdf(fs);
for (i = 1; i<=docNumberOfPages; i++)
{
Console.Write("\nPage " + i.ToString());
//get every valid barcode.
barcodeText = GetBarcodeText(pdfExtractor, i);
if (barcodeText != string.Empty)
{
//validate
validbarcode = ValidateBarcode(barcodeText);
if (validbarcode)
{
if (prevDocBarCodeText == "")
{
prevDocBarCodeText = barcodeText;
docFirstPage = i;
validbarcode = true;
}
else //this is the first page of the next document
{
docLastPage = i - 1;
//CreateNewDoc creates the new pdf document and returns the filename created
filesCreated = filesCreated + "\n " + CreateNewDoc(fs, docFirstPage, docLastPage, FilePath, prevDocBarCodeText, DocumentLibraryPath, upload);
prevDocBarCodeText = barcodeText;
docFirstPage = i;
//reset upload flag so rest of documents with valid barcodes will upload//reset flag so rest of documents with valid barcodes will upload
upload = true;
}
if (i == docNumberOfPages)
{
//this is also the last page
docLastPage = i;
Console.WriteLine(" -- Last Page!\n\n");
filesCreated = CreateNewDoc(fs, docFirstPage, docLastPage, FilePath, prevDocBarCodeText, DocumentLibraryPath, upload);
}
}
}
**************************Remaining code to handle what page I'm on and what I want to do.
Hi Tim,
Rather than the whole document I have attached the failing barcode -
Hi Tim,
try<o:p></o:p>
{
int i = 0;
// bind the pdf document
PdfExtractor pdfExtractor = new PdfExtractor();
pdfExtractor.BindPdf(@"C:\AB\test44\20130219130306948.pdf");
// set page range for image extraction
pdfExtractor.StartPage = 1;
pdfExtractor.EndPage = 1;
// extract the images
Console.WriteLine("Extracting images.....");
pdfExtractor.ExtractImage();
// save images to stream in a loop
while (pdfExtractor.HasNextImage())
{
Console.WriteLine("Getting next image....");
// save image to stream
MemoryStream imageStream = new MemoryStream();
pdfExtractor.GetNextImage(imageStream);
Console.WriteLine("Recognizing barcode....");
// recognize the barcode from the image stream above
BarCodeReader barcodeReader = new BarCodeReader(imageStream, BarCodeReadType.QR);
while (barcodeReader.Read())
{
Console.WriteLine("Codetext found: " + barcodeReader.GetCodeText() + ", Symbology: " + barcodeReader.GetReadType().ToString());
}
// close the reader
barcodeReader.Close();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
I hope this will help you. Please let us know in case of further assistance and comments.
Hi Tim,
if (barcodeText != string.Empty)<o:p></o:p>
Hi Tim,
I was able to read the barcode with these latest dlls.
Thanks for the help!
Tim
So I am able to get the barcode with the latest dlls - thanks for your help!
Tim
Hi Tim,