Verify Barcode signatures in the document

GroupDocs.Signature provides BarcodeVerifyOptions class to specify different options for verification of Barcode signatures.

Here are the steps to verify Barcode signature within the document with GroupDocs.Signature:

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

This example shows how to verify Barcode signature in the document.

using (Signature signature = new Signature("sample.pdf"))
{
    BarcodeVerifyOptions options = new BarcodeVerifyOptions()
    {
        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 = BarcodeTypes.Code128
    };

    // verify document signatures
    VerificationResult result = signature.Verify(options);
    if (result.IsValid)
    {
        Console.WriteLine("\nDocument was verified successfully!");
    }
    else
    {
        Console.WriteLine("\nDocument failed verification process.");
    }
}

Advanced Usage Topics

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

More resources

GitHub Examples

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

Free Online App

Along with full-featured .NET library we provide simple, but powerful free Apps.

You are welcome to eSign PDF, Word, Excel, PowerPoint documents with free to use online GroupDocs Signature App.

Verify document for signatures Verify Digital signatures in the document