Search for multiple e-signature types Leave feedback

Sometimes you may want to search for electronic signatures of different types simultaneously. GroupDocs.Signature allows searching documents for different signature types in an easy and intuitive way. In common words the idea is to pass collection of desired signature types to Search method.

Here are the steps to search for multiple signatures types within the document with GroupDocs.Signature:

• Create new instance of Signature class and pass source document path as a constructor parameter.
• Instantiate search options for required signature types and them to collection of List<SearchOptions>  type.

The possible options are:

• BarcodeSearchOptions - to search for Barcode signatures;
• DigitalSearchOptions -  to search for Digital signatures;
• FormFieldSearchOptions - to search for Form-field signatures;
• ImageSearchOptions - to search for Image signatures;
• MetadataSearchOptions - to search for Metadata signatures;
• QrCodeSearchOptions - to search for QR-code signatures;
• TextSearchOptions to search for Text signatures.
• Call Search method of Signature class instance and pass collection of search options to it.

This example shows how to search for multiple electronic signature types in the document.

using (Signature signature = new Signature("SingedSample.pdf"))
{
    // define few search options
    BarcodeSearchOptions barcodeOptions = new BarcodeSearchOptions()
    {
        EncodeType = BarcodeTypes.Code128
    };
    QrCodeSearchOptions qrCodeOptions = new QrCodeSearchOptions()
    {
        EncodeType = QrCodeTypes.QR,
        Text = "John",
        MatchType = TextMatchType.Contains
    };
    MetadataSearchOptions metadataOptions = new MetadataSearchOptions()
    {
        IncludeBuiltinProperties = true
    };

    // add options to list
    List<SearchOptions> listOptions = new List<SearchOptions>();
    listOptions.Add(barcodeOptions);
    listOptions.Add(qrCodeOptions);
    listOptions.Add(metadataOptions);

    // search for signatures in document
    SearchResult result = signature.Search(listOptions);
    if (result.Signatures.Count > 0)
    {
        Console.WriteLine("\nSource document contains following signatures.");
        foreach (var resSignature in result.Signatures)
        {
            Console.WriteLine("Signature found at page {0} with type {1}", 
                resSignature.PageNumber,
                resSignature.SignatureType);
        }
    }
    else
    {
        Console.WriteLine("Signatures was not found.");
    }
}

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

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.