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// For complete examples and data files, please go to
string filePath = "../../SampleFiles/sample.pdf";
string fileName = Path.GetFileName(filePath);
string outputFilePath = Path.Combine("../../Output/", "SignWithQRCode", fileName);
using (Signature signature = new Signature(filePath))
// create QRCode option with predefined QRCode text
QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith")
// setup QRCode encoding type
EncodeType = QrCodeTypes.QR,
// set signature position
Left = 100,
Top = 100
// sign document to file
signature.Sign(outputFilePath, options);
Console.WriteLine("\nSource document signed successfully.\nFile saved at " + outputFilePath);
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