Advanced search for Form Field signatures

GroupDocs.SignatureΒ providesΒ FormFieldSearchOptionsΒ classΒ to specify different options to search for Form Field Signatures.

Here are the steps to search for Form Field signatures within the document with GroupDocs.Signature:

This example shows how to make advanced search for Form Field signatures in the document.

using (Signature signature = new Signature("signed.pdf"))
    FormFieldSearchOptions options = new FormFieldSearchOptions()
        Value = "Value1",
        AllPages = true,
        Name = "TestField",
        Type = FormFieldType.Text
    // search for signatures in document
    List<FormFieldSignature> signatures = signature.Search<FormFieldSignature>(options);
    Console.WriteLine("\nSource document contains following signatures.");
    foreach (var formFieldSignature in signatures)
        Console.WriteLine("FormField signature found. Name : {0}. Value: {1}", formFieldSignature.Name, formFieldSignature.Value);

More resources

GitHub Examples

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

Free Online Apps

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.