This article explains how to search for embedded electronic signatures with custom serialization in QR code electronic signatures. This topic contains example of custom serialization, class definition and search for serialized objects in the QR-codes with GroupDocs.Signature....This article explains how to search for embedded electronic signatures with custom serialization in QR code electronic signatures. This topic contains example of custom serialization, class definition and search for serialized objects in the QR-codes with GroupDocs.Signature.