ByteScout Cloud API Server - PDF Password And Security - C# - Protect PDF Document - ByteScout

ByteScout Cloud API Server – PDF Password And Security – C# – Protect PDF Document

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PDF password and security in C# using ByteScout Cloud API Server

ByteScout Cloud API Server: the ready to use Web API Server that can be deployed in less than 30 minutes into your own in-house server or into private cloud server. Can store data on in-house local server based storage or in Amazon AWS S3 bucket. Processing data solely on the server using buil-in ByteScout powered engine, no cloud services are used to process your data!.

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<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns=""> <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProjectGuid>{1E1C2C34-017E-4605-AE2B-55EA3313BE51}</ProjectGuid> <OutputType>Exe</OutputType> <AppDesignerFolder>Properties</AppDesignerFolder> <RootNamespace>ByteScoutWebApiExample</RootNamespace> <AssemblyName>ByteScoutWebApiExample</AssemblyName> <TargetFrameworkVersion>v4.0</TargetFrameworkVersion> <FileAlignment>512</FileAlignment> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <Optimize>false</Optimize> <OutputPath>bin\Debug\</OutputPath> <DefineConstants>DEBUG;TRACE</DefineConstants> <ErrorReport>prompt</ErrorReport> <WarningLevel>4</WarningLevel> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugType>pdbonly</DebugType> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DefineConstants>TRACE</DefineConstants> <ErrorReport>prompt</ErrorReport> <WarningLevel>4</WarningLevel> </PropertyGroup> <ItemGroup> <Reference Include="Newtonsoft.Json, Version=, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL"> <HintPath>packages\Newtonsoft.Json.10.0.3\lib\net40\Newtonsoft.Json.dll</HintPath> <Private>True</Private> </Reference> <Reference Include="System" /> <Reference Include="System.Core" /> <Reference Include="System.Xml.Linq" /> <Reference Include="System.Data" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Compile Include="Program.cs" /> <Compile Include="Properties\AssemblyInfo.cs" /> </ItemGroup> <ItemGroup> <None Include="packages.config" /> <Content Include="sample.pdf"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>


Microsoft Visual Studio Solution File, Format Version 12.00 # Visual Studio 2013 VisualStudioVersion = 12.0.40629.0 MinimumVisualStudioVersion = 10.0.40219.1 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ByteScoutWebApiExample", "ByteScoutWebApiExample.csproj", "{1E1C2C34-017E-4605-AE2B-55EA3313BE51}" EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|Any CPU = Debug|Any CPU Release|Any CPU = Release|Any CPU EndGlobalSection GlobalSection(ProjectConfigurationPlatforms) = postSolution {1E1C2C34-017E-4605-AE2B-55EA3313BE51}.Debug|Any CPU.ActiveCfg = Debug|Any CPU {1E1C2C34-017E-4605-AE2B-55EA3313BE51}.Debug|Any CPU.Build.0 = Debug|Any CPU {1E1C2C34-017E-4605-AE2B-55EA3313BE51}.Release|Any CPU.ActiveCfg = Release|Any CPU {1E1C2C34-017E-4605-AE2B-55EA3313BE51}.Release|Any CPU.Build.0 = Release|Any CPU EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE EndGlobalSection EndGlobal


using System; using System.CodeDom; using System.Collections.Generic; using System.IO; using System.Net; using Newtonsoft.Json; using Newtonsoft.Json.Linq; namespace ByteScoutWebApiExample { // Please NOTE: In this sample we're assuming Cloud Api Server is hosted at "https://localhost". // If it's not then please replace this with with your hosting url. class Program { // The authentication key (API Key). // Get your own by registering at const String API_KEY = "***********************************"; // Source PDF file const string SourceFile = @".\sample.pdf"; // Destination PDF file name const string DestinationFile = @".\protected.pdf"; // Passwords to protect PDF document // The owner password will be required for document modification. // The user password only allows to view and print the document. const string OwnerPassword = "123456"; const string UserPassword = "654321"; // Encryption algorithm. // Valid values: "RC4_40bit", "RC4_128bit", "AES_128bit", "AES_256bit". const string EncryptionAlgorithm = "AES_128bit"; // Allow or prohibit content extraction for accessibility needs. const bool AllowAccessibilitySupport = true; // Allow or prohibit assembling the document. const bool AllowAssemblyDocument = true; // Allow or prohibit printing PDF document. const bool AllowPrintDocument = true; // Allow or prohibit filling of interactive form fields (including signature fields) in PDF document. const bool AllowFillForms = true; // Allow or prohibit modification of PDF document. const bool AllowModifyDocument = true; // Allow or prohibit copying content from PDF document. const bool AllowContentExtraction = true; // Allow or prohibit interacting with text annotations and forms in PDF document. const bool AllowModifyAnnotations = true; // Allowed printing quality. // Valid values: "HighResolution", "LowResolution" const string PrintQuality = "HighResolution"; static void Main(string[] args) { // Create standard .NET web client instance WebClient webClient = new WebClient(); // Set API Key webClient.Headers.Add("x-api-key", API_KEY); // Upload file to the cloud string uploadedFileUrl = UploadFile(SourceFile); // PROTECT UPLOADED PDF DOCUMENT // Prepare requests params as JSON // See documentation: Dictionary<string, string> parameters = new Dictionary<string, string>(); parameters.Add("name", Path.GetFileName(DestinationFile)); parameters.Add("url", uploadedFileUrl); parameters.Add("ownerPassword", OwnerPassword); parameters.Add("userPassword", UserPassword); parameters.Add("encryptionAlgorithm", EncryptionAlgorithm); parameters.Add("allowAccessibilitySupport", AllowAccessibilitySupport.ToString()); parameters.Add("allowAssemblyDocument", AllowAssemblyDocument.ToString()); parameters.Add("allowPrintDocument", AllowPrintDocument.ToString()); parameters.Add("allowFillForms", AllowFillForms.ToString()); parameters.Add("allowModifyDocument", AllowModifyDocument.ToString()); parameters.Add("allowContentExtraction", AllowContentExtraction.ToString()); parameters.Add("allowModifyAnnotations", AllowModifyAnnotations.ToString()); parameters.Add("printQuality", PrintQuality); // Convert dictionary of params to JSON string jsonPayload = JsonConvert.SerializeObject(parameters); try { // URL of "PDF Security" endpoint string url = "https://localhost/pdf/security/add"; // Execute POST request with JSON payload string response = webClient.UploadString(url, jsonPayload); // Parse JSON response JObject json = JObject.Parse(response); if (json["error"].ToObject<bool>() == false) { // Get URL of generated PDF file string resultFileUrl = json["url"].ToString(); // Download generated PDF file webClient.DownloadFile(resultFileUrl, DestinationFile); Console.WriteLine("Generated PDF file saved as \"{0}\" file.", DestinationFile); } else { Console.WriteLine(json["message"].ToString()); } } catch (WebException e) { Console.WriteLine(e.ToString()); } webClient.Dispose(); Console.WriteLine(); Console.WriteLine("Press any key..."); Console.ReadKey(); } /// <summary> /// Uploads file to the cloud and return URL of uploaded file to use in further API calls. /// </summary> /// <param name="file">Source file name (path).</param> /// <returns>URL of uploaded file</returns> static string UploadFile(string file) { // Create standard .NET web client instance WebClient webClient = new WebClient(); // Set API Key webClient.Headers.Add("x-api-key", API_KEY); try { // 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE. // * If you already have a direct file URL, skip to the step 3. // Prepare URL for `Get Presigned URL` API call string query = Uri.EscapeUriString(string.Format( "https://localhost/file/upload/get-presigned-url?contenttype=application/octet-stream&name={0}", Path.GetFileName(file))); // Execute request string response = webClient.DownloadString(query); // Parse JSON response JObject json = JObject.Parse(response); if (json["error"].ToObject<bool>() == false) { // Get URL to use for the file upload string uploadUrl = json["presignedUrl"].ToString(); // Get URL of uploaded file to use with later API calls string uploadedFileUrl = json["url"].ToString(); // 2. UPLOAD THE FILE TO CLOUD. webClient.Headers.Add("content-type", "application/octet-stream"); webClient.UploadFile(uploadUrl, "PUT", file); // You can use UploadData() instead if your file is in byte[] or Stream return uploadedFileUrl; } else { // Display service reported error Console.WriteLine(json["message"].ToString()); } } catch (Exception e) { Console.WriteLine(e); throw; } finally { webClient.Dispose(); } return null; } } }


<?xml version="1.0" encoding="utf-8"?> <packages> <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net40" /> </packages>



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