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Merge pull request #68 from datalogics-saharay/APDFL-6596-add-PAdES-EPES-digsig-sample
APDFL-6596: Add .NET Framework sample for PAdES policy-based signatures
2 parents 5362ad3 + aebfca2 commit 142cd05

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‎.github/workflows/test-net-framework-samples.yml‎

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'Printing/PrintPDF/',
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'Printing/PrintPDFGUI/',
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'Security/AddBasicPAdESElectronicSignature/',
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'Security/AddPAdESPolicySignature/',
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'Security/AddDigitalSignatureCMS/',
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'Security/AddDigitalSignatureRFC3161/',
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'Security/AddRegexRedaction/',

‎Samples.sln‎

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@@ -186,6 +186,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AddDigitalSignatureCMS", "S
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AddDigitalSignatureRFC3161", "Security\AddDigitalSignatureRFC3161\AddDigitalSignatureRFC3161.csproj", "{74FA984E-AB89-475A-9077-9D612DE12AEC}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AddPAdESPolicySignature", "Security\AddPAdESPolicySignature\AddPAdESPolicySignature.csproj", "{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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{C7DF1472-B78F-402E-8841-52D2CB2B4725}.Debug|x64.Build.0 = Debug|x64
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{C7DF1472-B78F-402E-8841-52D2CB2B4725}.Release|x64.ActiveCfg = Release|x64
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{C7DF1472-B78F-402E-8841-52D2CB2B4725}.Release|x64.Build.0 = Release|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Debug|x64.ActiveCfg = Debug|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Debug|x64.Build.0 = Debug|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Release|x64.ActiveCfg = Release|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Release|x64.Build.0 = Release|x64
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE

‎Security/AddPAdESPolicySignature/AddPAdESPolicySignature.cs‎

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using System;
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using System.Collections.Generic;
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using System.Text;
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using Datalogics.PDFL;
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/*
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*
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* This sample program demonstrates the use of AddDigitalSignature for PAdES
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* (PDF Advanced Electronic Signatures) with an explicit signature policy.
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* PAdES policy signatures (EPES) conform to the ETSI EN 319 142 standard,
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* use the ETSI.CAdES.detached SubFilter, and embed one or more signature
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* policy identifiers along with optional policy qualifiers.
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*
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* Copyright (c) 2026, Datalogics, Inc. All rights reserved.
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*
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*/
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namespace AddPAdESPolicySignature
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{
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class AddPAdESPolicySignature
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{
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static void Main(string[] args)
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{
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Console.WriteLine("AddPAdESPolicySignature Sample:");
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using (new Library())
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{
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Console.WriteLine("Initialized the library.");
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String sInput = Library.ResourceDirectory + "Sample_Input/SixPages.pdf";
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String sLogo = Library.ResourceDirectory + "Sample_Input/ducky_alpha.tif";
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String sOutput = "PAdESPolicySignature-out.pdf";
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String sPEMCert = Library.ResourceDirectory + "Sample_Input/Credentials/PEM/ecSecP521r1Cert.pem";
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String sPEMKey = Library.ResourceDirectory + "Sample_Input/Credentials/PEM/ecSecP521r1Key.pem";
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if (args.Length > 0)
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sInput = args[0];
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if (args.Length > 1)
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sOutput = args[1];
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if (args.Length > 2)
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sLogo = args[2];
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Console.WriteLine("Input file: " + sInput);
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Console.WriteLine("Writing to output: " + sOutput);
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using (Document doc = new Document(sInput))
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{
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using (Datalogics.PDFL.SignDoc sigDoc = new Datalogics.PDFL.SignDoc())
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{
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// Setup Sign params
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sigDoc.FieldID = SignatureFieldID.CreateFieldWithQualifiedName;
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sigDoc.FieldName = "Signature_es_:signatureblock";
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// Set credential related attributes
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// PAdES signatures use SHA-384 digest with EC credentials
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sigDoc.DigestCategory = DigestCategory.Sha384;
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sigDoc.CredentialDataFormat = CredentialDataFmt.NonPFX;
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sigDoc.SetNonPfxSignerCert(sPEMCert, 0, CredentialStorageFmt.OnDisk);
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sigDoc.SetNonPfxPrivateKey(sPEMKey, 0, CredentialStorageFmt.OnDisk);
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// Set the signature type to PAdES (PDF Advanced Electronic Signatures).
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// NOTE: Signature type must be set prior to adding policies.
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sigDoc.DocSignType = SignatureType.PADES;
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// Define a signature policy (SigPolicyId) using an OID.
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sigDoc.AddSigPolicy("2.16.724.1.3.1.1.2.1.9");
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// Add a policy qualifier (SPuri) pointing to the policy specification document.
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sigDoc.AddSigPolicyQualifierURI(
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"https://sede.administracion.gob.es/politica_de_firma_anexo_1.pdf");
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// Setup the signer information
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// (Logo image is optional)
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sigDoc.SetSignerInfo(sLogo, 0.5F, "John Doe", "Chicago, IL", "Approval", "Datalogics, Inc.",
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DisplayTraits.KDisplayAll);
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// Set the size and location of the signature box (optional)
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// If not set, invisible signature will be placed on first page
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sigDoc.SignatureBoxPageNumber = 0;
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sigDoc.SignatureBoxRectangle = new Rect(100, 300, 400, 400);
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// Setup Save params
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sigDoc.OutputPath = sOutput;
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// Finally, sign and save the document
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sigDoc.AddDigitalSignature(doc);
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}
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}
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}
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}
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}
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}

‎Security/AddPAdESPolicySignature/AddPAdESPolicySignature.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">x64</Platform>
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<ProjectGuid>{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<RootNamespace>AddPAdESPolicySignature</RootNamespace>
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<AssemblyName>AddPAdESPolicySignature</AssemblyName>
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<TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
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<Deterministic>true</Deterministic>
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<NuGetPackageImportStamp>
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</NuGetPackageImportStamp>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x64' ">
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<PlatformTarget>x64</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x64' ">
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<PlatformTarget>x64</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Data" />
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<Reference Include="System.Net.Http" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="AddPAdESPolicySignature.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="App.config" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Adobe.PDF.Library.LM.NETFramework">
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<Version>18.*</Version>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<Folder Include="Properties\" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>

‎Security/AddPAdESPolicySignature/AddPAdESPolicySignature.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 = 17.14.36414.22 d17.14
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AddPAdESPolicySignature", "AddPAdESPolicySignature.csproj", "{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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Release|x64 = Release|x64
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Debug|x64.ActiveCfg = Debug|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Debug|x64.Build.0 = Debug|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Release|x64.ActiveCfg = Release|x64
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{D4E8A2B1-6F3C-4D5E-9A7B-1C2D3E4F5A6B}.Release|x64.Build.0 = Release|x64
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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 = {B7F3A1C2-8D4E-5F6A-9B0C-2D3E4F5A6B7C}
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EndGlobalSection
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EndGlobal

‎Security/AddPAdESPolicySignature/App.config‎

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
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</startup>
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</configuration>

‎Security/README.md‎

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## ***AddBasicPAdESElectronicSignature***
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Demonstrates adding a PAdES B-T baseline electronic signature to a PDF document.
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## ***AddPAdESPolicySignature***
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Demonstrates adding a PAdES B-T policy-based signature to a PDF document.
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## ***AddDigitalSignatureCMS***
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Demonstrates adding a digital signature with a logo to a PDF document.
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