We're sorry Aspose doesn't work properply without JavaScript enabled.

Free Support Forum - aspose.com

Unable to read specific barcodes

We’ve been using Aspose.Barcode to read QR and PDF417 barcodes for a while, but recently started running into specific cases where it isn’t working.

The barcodes are high quality (extracted using PdfExtractor), and we’ve tried multiple parser settings as well as converting the image to pure black & white before conversion.

Do you have any advice on parsing the attached QR code?

barcode.png (299 Bytes)

Ok, found the problem. Barcode engine incorrectly creates barcode region because it recognizes additional fake target. Put task on 2020/14 week.


For your information, a ticket was logged with an id “BARCODENET-37425” for your issue. You will be notified when an update is available or we figure it out.

Thank you for the quick response.

We have temporarily worked around the issue by enlarging images if a barcode isn’t found, but this introduces a significant performance hit since we end up having to enlarge all images extracted from the PDF documents and most aren’t actually barcodes.

Please let us know when this is fixed so we can pull out our hack.

Sure, we will write back here immediately once any feedback is ready to share.

Could you provide more unread barcodes to create more stable fix.

I’m attaching 2 more. Hopefully this helps.

QrCode_uy95.png (930 Bytes)
QrCode_wv31.png (926 Bytes)

Thank you for providing more sample files. These will help us to create more stable fix.

The issues you have found earlier (filed as BARCODENET-37425) have been fixed in Aspose.BarCode for .NET v20.4. This message was posted using Bugs notification tool by ahsaniqbalsidiqui

This appears to have fixed the issue. Thanks for the quick turnaround!

Good to know that your issue is sorted out by the suggested hot fix. Feel free to contact us at any time if you need further help or have some other issue or queries, we will be happy to assist you soon.