Advanced search for Form Field signatures

GroupDocs.Signature provides FormFieldSearchOptions class 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 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.