How to search for QR code signatures

When you search for electronic signatures of QR-Code type inside document withΒ GroupDocs.Signature it’s only needed toΒ QrCodeSearchOptionsΒ objectΒ to Search method. Here are the quick guide of how to search for QR-code signatures:

The code snippet below demonstrates search for QR-code signature in the document.

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

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

Advanced Usage Topics

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

More resources

GitHub Examples

You may easily run the code above and see the feature in action in ourΒ GitHub examples:

Free Online Apps

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.