Handling password required exception Leave feedback

// skip initialization of LoadOptions with Password
// LoadOptions loadOptions = new LoadOptions(){ Password  = "1234567890" }
using (Signature signature = new Signature("protectedPwd.pdf"))
{
    try
    {
        QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith")
        {
            EncodeType = QrCodeTypes.QR,
            Left = 100,
            Top = 100
        };
        // try to sign document to file, we expect for PasswordRequiredException
        signature.Sign(outputFilePath, options);
        Console.WriteLine("\nSource document signed successfully.\nFile saved at " + outputFilePath);
    }
    catch(PasswordRequiredException ex)
    {
        Console.WriteLine($"PasswordRequiredException: {ex.Message}");
    }
    catch(GroupDocsSignatureException ex)
    {
        Console.WriteLine($"Common GroupDocsSignatureException: {ex.Message}");
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Common Exception happens only at user code level: {ex.Message}");
    }
    finally
    {
    }
}