Search for Barcode e-signatures

GroupDocs.Signature provides an easy and straightforward way to find all Barcode signatures that are present in a document.
For the most simpler use case - just find all Barcode signatures within document its only needed to instantiate BarcodeSearchOptions class and pass it to Search method.

Here are the exact steps to search for Barcode signatures within the document with GroupDocs.Signature:

Create new instance of Signature class and pass source document path as a constructor parameter.
Instantiate the BarcodeSearchOptions object according to your requirements and specify search options
Call Search method of Signature class instance and pass BarcodeSearchOptions to it.

This example shows how to search for Barcode signature in the document.

using (Signature signature = new Signature("sample.pdf"))
{
        // search for signatures in document
        List<BarcodeSignature> signatures = signature.Search<BarcodeSignature>(SignatureType.Barcode);

        Console.WriteLine("\nSource document contains following signatures.");
        foreach (var barcodeSignature in signatures)
        {
            Console.WriteLine("Barcode signature found at page {0} with type {1} and text {2}",
                barcodeSignature.PageNumber, barcodeSignature.EncodeType, barcodeSignature.Text);
        }
}

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.

Search for electronic signatures in document Search for Digital e-signatures