Verify QR-code signatures in the document Leave feedback

GroupDocs.Signature provides QrCodeVerifyOptions class to specify different options for verification of QR-code signatures.

Here are the steps to verify qr-code signature within the document with GroupDocs.Signature for .NET API:

• Create new instance of Signature class and pass source document path as a constructor parameter.
• Instantiate the QrCodeVerifyOptions object according to your requirements and specify verification options
• Call Verify method of Signature class instance and pass QrCodeVerifyOptions to it.

This example shows how to verify QR-code signature in the document.

using (Signature signature = new Signature("sample.pdf"))
{
    QrCodeVerifyOptions options = new QrCodeVerifyOptions()
    {
        AllPages = true, // this value is set by default
        Text = "John",
        MatchType = TextMatchType.Contains
        // set encode type
        // if this value is not set any barcode type will be valid
        EncodeType = QrCodeTypes.QR
    };
    // verify document signatures
    VerificationResult result = signature.Verify(options);
    if (result.IsValid)
    {
        Console.WriteLine("\nDocument was verified successfully!");
    }
    else
    {
        Console.WriteLine("\nDocument failed verification process.");
    }
}

To learn more about document eSign features, please refer to the advanced usage section.

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Signature for .NET examples, plugins, and showcase
• GroupDocs.Signature for Java examples, plugins, and showcase
• Document Signature for .NET MVC UI Example
• Document Signature for .NET App WebForms UI Example
• Document Signature for Java App Dropwizard UI Example
• Document Signature for Java Spring UI Example

Along with the full-featured .NET library, we provide simple but powerful free online apps.

To generate QR codes and/or sign your files with QR codes for free, you can use the QR Code Generator online app.

To sign PDF, Word, Excel, PowerPoint, and other documents you can use the other online apps from the GroupDocs.Signature App Product Family.