Verify Text signatures in the document

GroupDocs.Signature provides TextVerifyOptions class to specify different options for verification of Text signatures.

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

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

using (Signature signature = new Signature("sample.pdf"))
{
        TextVerifyOptions options = new TextVerifyOptions()
        {
            AllPages = true, // this value is set by default
            SignatureImplementation = TextSignatureImplementation.Stamp,
            Text = "John",
            MatchType = TextMatchType.Contains
        };
        // 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.