Verify Text signatures in the document Leave feedback

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

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

• Create a new instance of the Signature class and pass the source document path as a constructor parameter.
• Instantiate the TextVerifyOptions object according to your requirements and specify verification options.
• Call the Verify method of the Signature class instance and pass the TextVerifyOptions to it. This example shows how to verify Text signature in the document.

  // The path to the documents directory.
  const filePath = Constants.SAMPLE_SIGNED_MULTI; // Assuming Constants.SAMPLE_SIGNED_MULTI is defined elsewhere

  // Initialize Signature instance
  const signature = new signatureLib.Signature(filePath);

  // Initialize TextVerifyOptions
  const options = new signatureLib.TextVerifyOptions();
  options.setSignatureImplementation(signatureLib.TextSignatureImplementation.Native);
  options.setText('signature');
  options.setMatchType(signatureLib.TextMatchType.Contains);

  // Verify document signatures
  const result = signature.verify(options);

  if (result.isValid()) {
    console.log('\nDocument was verified successfully!');
  } else {
    console.log('\nDocument failed the verification process.');
  }

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