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.