Free Support Forum -

Attached bitmap and PDF not readable by BarCodeReader


Hi, I’m trying to read a barcode from either the attached PDF or a Screenshot of the same document using the following Code, but new BarCodeReader(bmp, type).Read() always returns false whether I’m using BarCodeReadType.QR or BarCodeReadType.AllSupportedTypes:

        var bmp = new Bitmap("QrCode_20mm.png");
        BarCodeReader reader = new BarCodeReader(bmp, BarCodeReadType.AllSupportedTypes);
        if (reader.Read())
            return reader.GetCodeText();
        return null;

The PDF was generated using Aspose PDF using an image generated from Aspose.Barcode.
Please tell me what I have to change to be able to read the Barcode.
QrCode_20mm.png (12.3 KB)
QrCode_20mm.pdf (390.5 KB)



Thanks for the bitmap and PDF file.

After an initial test and using your sample code with your template file, I managed to reproduce the issue as you have mentioned. I found I found new BarCodeReader(bmp, type).Read() always returns false whether I use BarCodeReadType.QR or BarCodeReadType.AllSupportedTypes. I have logged a ticket with an id “BARCODENET-37137” for your issue. We will look into it soon.

Once we have an update on it, we will let you know here.



We are pleased to inform you that we have fixed your issue (logged earlier as “BARCODENET-37137”) now. We will provide you the fixed version after performing QA and incorporating other enhancements and fixes.

Once the next version/fix is available, we will notify you with Download link.