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Sowmiya Loganathan
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‎Digital Signature/Deferred-signing-in-PDF-document/.NET/Deferred-signing-in-PDF-document.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.1.32407.343
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Deferred-signing-in-PDF-document", "Deferred-signing-in-PDF-document\Deferred-signing-in-PDF-document.csproj", "{5BEAE687-F001-4BAD-8A88-D890659A9F9B}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{5BEAE687-F001-4BAD-8A88-D890659A9F9B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{5BEAE687-F001-4BAD-8A88-D890659A9F9B}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{5BEAE687-F001-4BAD-8A88-D890659A9F9B}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{5BEAE687-F001-4BAD-8A88-D890659A9F9B}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {2F087142-046B-4F86-9730-7EF39B6B4608}
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EndGlobalSection
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EndGlobal

‎Digital Signature/Deferred-signing-in-PDF-document/.NET/Deferred-signing-in-PDF-document/Barcode.pdf‎

4.84 KB
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‎Digital Signature/Deferred-signing-in-PDF-document/.NET/Deferred-signing-in-PDF-document/Deferred-signing-in-PDF-document.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net6.0</TargetFramework>
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<RootNamespace>Deferred_signing_in_PDF_document</RootNamespace>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.Pdf.Net.Core" Version="20.2.0.50" />
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</ItemGroup>
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</Project>

‎Digital Signature/Deferred-signing-in-PDF-document/.NET/Deferred-signing-in-PDF-document/PDF.pfx‎

2.52 KB
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‎Digital Signature/Deferred-signing-in-PDF-document/.NET/Deferred-signing-in-PDF-document/Program.cs‎

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// See https://aka.ms/new-console-template for more information
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using Syncfusion.Drawing;
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using Syncfusion.Pdf.Parsing;
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using Syncfusion.Pdf.Security;
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using System.Security.Cryptography;
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using System.Security.Cryptography.X509Certificates;
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class Program
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{
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public static string PublicCert = "MIIDFTCCAf2gAwIBAgIQMjdwZGujtplDiSGarQzO1DANBgkqhkiG9w0BAQsFADAXMRUwEwYDVQQDEwxUZXN0Q2VydFJvb3QwHhcNMTkwOTA5MDg0MzM5WhcNMzkxMjMxMjM1OTU5WjAXMRUwEwYDVQQDEwxUZXN0Q2VydFJvb3QwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCWs+BZKfWf5cZauYDpXPlHUZour4oNaGoAfySXUD28KLNxCI6AWlK+UV+JJWgcrJ9SpLuoxQb1384gZhQMe4RFtILQpxx9nAxtwsd7/6OLI4G9TRIdy6PJ2OHyHKL9ZqI/+XkUbgznUF9o0F2VlQwszSCQREDQ5PxcGy/GWS71ZT1tvs8iqMVi3PCUH8ERwqTwIhWvRt6weVZ/daR9rNqkEPkpT5tQPMGvmqEinxbjpO8h8gU91rXbiHaY7QlDgCmEy3zWVIROR56x3ZJv5/xjJ/ya4X51P3DcLNGgUTRre0cYXHfnyTQAVFDGxEGsTd4xOnMWrbMaoeRBt8dtBGNBAgMBAAGjXTBbMA8GA1UdEwEB/wQFMAMBAf8wSAYDVR0BBEEwP4AQk/aIkhJaRQ2nRg1ECf13f6EZMBcxFTATBgNVBAMTDFRlc3RDZXJ0Um9vdIIQMjdwZGujtplDiSGarQzO1DANBgkqhkiG9w0BAQsFAAOCAQEAbcFInTXT+08eV1JyrkMsR3HZGtPXyAGRSiZkMJJKE1MU79fFXCiQf6/UpCV76vdCCSOrZLJweUeZPLznZhOxu9aEGnA0CPEcphYUVT9J8aV8MpQJu5DKGbphdBuZNlBQvVg9Yxs0T7Ne49S3s2EUL/w6tFoBuGh1ar9rc3IRmJA8WM2orz4Q8bVhYdtlxWynfx3idCv7pQDymHmB0Wt5iSlcAfcDrZb7YSq+VYIHzAZatefjGRSsbRuVpSfz3dt+cVttKbY3mOWD4zaUvPvKs6bWznxStEBHomcWd3DymekC78aI9XKLmetddpzx6eOgf9Vju8KuO+udGDpoPy2apw==";
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public static byte[] SignedHash = null;
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public static byte[] SignedHash2 = null;
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static void Main(string[] args)
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{
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//Register Syncfusion license
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Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("MDAxQDMyMzAyZTMyMmUzMEpFWWZ3RUVveVJLeWJNTmpSaU5Gd0crYXpISyszcWxNcGo2QzVaRnd4aW89");
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CreateEmptySignedPDF();
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DeferredSign();
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}
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static void CreateEmptySignedPDF()
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{
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// Get the stream from the document.
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FileStream documentStream = new FileStream(Path.GetFullPath("../../../Barcode.pdf"), FileMode.Open, FileAccess.Read);
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//Load an existing PDF document.
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PdfLoadedDocument loadedDocument = new PdfLoadedDocument(documentStream);
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//Creates a digital signature.
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PdfSignature signature = new PdfSignature(loadedDocument, loadedDocument.Pages[0], null, "Signature");
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//Sets the signature information.
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signature.Bounds = new RectangleF(new PointF(0, 0), new SizeF(100, 30));
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signature.Settings.CryptographicStandard = CryptographicStandard.CADES;
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signature.Settings.DigestAlgorithm = DigestAlgorithm.SHA1;
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//Create an external signer.
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IPdfExternalSigner externalSignature = new SignEmpty("SHA1");
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//Add public certificates.
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System.Collections.Generic.List<X509Certificate2> certificates = new System.Collections.Generic.List<X509Certificate2>();
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certificates.Add(new X509Certificate2(Convert.FromBase64String(PublicCert)));
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signature.AddExternalSigner(externalSignature, certificates, null);
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//Save the document.
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FileStream inputFileStream = new FileStream(Path.GetFullPath("../../../EmptySignature.pdf"), FileMode.Create, FileAccess.ReadWrite);
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loadedDocument.Save(inputFileStream);
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//Close the PDF document.
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loadedDocument.Close(true);
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inputFileStream.Close();
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}
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static void DeferredSign()
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{
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//Create an external signer with a signed hash message.
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IPdfExternalSigner externalSigner = new ExternalSigner("SHA1", Program.SignedHash);
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//Add public certificates.
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System.Collections.Generic.List<X509Certificate2> publicCertificates = new System.Collections.Generic.List<X509Certificate2>();
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publicCertificates.Add(new X509Certificate2(Convert.FromBase64String(PublicCert)));
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//Create an output file stream.
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FileStream outputFileStream = new FileStream(Path.GetFullPath("../../../DeferredSign.pdf"), FileMode.Create, FileAccess.ReadWrite);
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// Get the stream from the document
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FileStream inputFileStream = new FileStream(Path.GetFullPath("../../../EmptySignature.pdf"), FileMode.Open, FileAccess.Read);
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string pdfPassword = string.Empty;
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//Replace an empty signature.
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PdfSignature.ReplaceEmptySignature(inputFileStream, pdfPassword, outputFileStream, "Signature", externalSigner, publicCertificates);
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outputFileStream.Close();
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}
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/// <summary>
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/// Represents to sign an empty signature from the external signer.
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/// </summary>
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class SignEmpty : IPdfExternalSigner
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{
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private string _hashAlgorithm;
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public string HashAlgorithm
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{
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get { return _hashAlgorithm; }
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}
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public SignEmpty(string hashAlgorithm)
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{
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_hashAlgorithm = hashAlgorithm;
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}
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public byte[] Sign(byte[] message, out byte[] timeStampResponse)
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{
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//Send document hash for signing using the external services.
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SignDocumentHash(message);
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//Set a null value to create an empty signed document.
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byte[] signedBytes = null;
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timeStampResponse = null;
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return signedBytes;
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}
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//Example for signed docuement hash
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private void SignDocumentHash(byte[] documentHash)
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{
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X509Certificate2 digitalID = new X509Certificate2(new X509Certificate2(Path.GetFullPath("../../../PDF.pfx"), "password123"));
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if (digitalID.PrivateKey is System.Security.Cryptography.RSACryptoServiceProvider)
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{
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System.Security.Cryptography.RSACryptoServiceProvider rsa = (System.Security.Cryptography.RSACryptoServiceProvider)digitalID.PrivateKey;
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Program.SignedHash = rsa.SignData(documentHash, HashAlgorithm);
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}
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else if (digitalID.PrivateKey is RSACng)
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{
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RSACng rsa = (RSACng)digitalID.PrivateKey;
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Program.SignedHash = rsa.SignData(documentHash, System.Security.Cryptography.HashAlgorithmName.SHA1, RSASignaturePadding.Pkcs1);
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}
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}
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}
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/// <summary>
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/// Represents to replace an empty signature from an external signer.
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/// </summary>
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class ExternalSigner : IPdfExternalSigner
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{
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private string _hashAlgorithm;
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private byte[] _signedHash;
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public string HashAlgorithm
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{
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get { return _hashAlgorithm; }
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}
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public ExternalSigner(string hashAlgorithm, byte[] hash)
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{
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_hashAlgorithm = hashAlgorithm;
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_signedHash = hash;
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}
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public byte[] Sign(byte[] message, out byte[] timeStampResponse)
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{
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//Set the signed hash message to replace an empty signature.
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byte[] signedBytes = _signedHash;
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timeStampResponse = null;
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return signedBytes;
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}
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}
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}

‎Forms/Get-option-value-from-acroform-radio-button/.NET/Get-option-value-from-acroform-radio-button.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.1.32407.343
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Get-option-value-from-acroform-radio-button", "Get-option-value-from-acroform-radio-button\Get-option-value-from-acroform-radio-button.csproj", "{0B1D624A-F9A4-4973-BEC2-C4EAF29D54A6}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{0B1D624A-F9A4-4973-BEC2-C4EAF29D54A6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{0B1D624A-F9A4-4973-BEC2-C4EAF29D54A6}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{0B1D624A-F9A4-4973-BEC2-C4EAF29D54A6}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{0B1D624A-F9A4-4973-BEC2-C4EAF29D54A6}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {9FD8C59B-585A-4DA8-B2FD-547547EF839E}
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EndGlobalSection
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EndGlobal

‎Forms/Get-option-value-from-acroform-radio-button/.NET/Get-option-value-from-acroform-radio-button/Get-option-value-from-acroform-radio-button.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net6.0</TargetFramework>
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<RootNamespace>Get_option_value_from_acroform_radio_button</RootNamespace>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.Pdf.NET" Version="20.1.0.52" />
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</ItemGroup>
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</Project>

‎Forms/Get-option-value-from-acroform-radio-button/.NET/Get-option-value-from-acroform-radio-button/Input.pdf‎

1.91 MB
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‎Forms/Get-option-value-from-acroform-radio-button/.NET/Get-option-value-from-acroform-radio-button/Program.cs‎

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// See https://aka.ms/new-console-template for more information
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using Syncfusion.Pdf.Parsing;
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//Get stream from an existing PDF document.
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FileStream docStream = new FileStream(Path.GetFullPath("../../../Input.pdf"), FileMode.Open, FileAccess.Read);
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//Load the PDF document.
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PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
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//Gets the loaded form.
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PdfLoadedForm form = loadedDocument.Form;
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//Set default appearance to false.
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form.SetDefaultAppearance(false);
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//Gets the 'Gender' radio button field.
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PdfLoadedRadioButtonListField radioButtonField = form.Fields["SF182[0].#subform[0].P1BCheck[0]"] as PdfLoadedRadioButtonListField;
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//Select the item that contains option value as "Male".
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foreach (PdfLoadedRadioButtonItem item in radioButtonField.Items)
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{
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//Gets an option value of the item.
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if (item.OptionValue == "Resubmission")
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{
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item.Selected = true;
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}
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}
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//Create file stream.
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using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"../../../Output.pdf"), FileMode.Create, FileAccess.ReadWrite))
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{
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//Save the PDF document to file stream.
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loadedDocument.Save(outputFileStream);
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}
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//Close the document.
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loadedDocument.Close(true);
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‎Table/PdfGrid/Add-a-hyperlink-in-a-table-cell/.NET/Add-a-hyperlink-in-a-table-cell.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.3.32819.101
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Add-a-hyperlink-in-a-table-cell", "Add-a-hyperlink-in-a-table-cell\Add-a-hyperlink-in-a-table-cell.csproj", "{7827ACF2-FCB7-40A1-A3A1-E80A1E2CE7DC}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{7827ACF2-FCB7-40A1-A3A1-E80A1E2CE7DC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{7827ACF2-FCB7-40A1-A3A1-E80A1E2CE7DC}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{7827ACF2-FCB7-40A1-A3A1-E80A1E2CE7DC}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{7827ACF2-FCB7-40A1-A3A1-E80A1E2CE7DC}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {D66335F7-D936-4F63-A8ED-13DEFFD0FFC4}
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EndGlobalSection
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EndGlobal

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