ByteScout PDF Extractor SDK - VB.NET - Make Unsearchable PDF - ByteScout

ByteScout PDF Extractor SDK – VB.NET – Make Unsearchable PDF

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How to make unsearchable PDF in VB.NET with ByteScout PDF Extractor SDK

How to make unsearchable PDF in VB.NET

On this page you will learn from code samples for programming in VB.NET.Writing of the code to make unsearchable PDF in VB.NET can be done by developers of any level using ByteScout PDF Extractor SDK. ByteScout PDF Extractor SDK can make unsearchable PDF. It can be used from VB.NET. ByteScout PDF Extractor SDK is the Software Development Kit (SDK) that is designed to help developers with data extraction from unstructured documents like pdf, tiff, scans, images, scanned and electronic forms. The library is powered by OCR, computer vision and AI to provide unique functionality like table detection, automatic table structure extraction, data restoration, data restructuring and reconstruction. Supports PDF, TIFF, PNG, JPG images as input and can output CSV, XML, JSON formatted data. Includes full set of utilities like pdf splitter, pdf merger, searchable pdf maker.

This code snippet below for ByteScout PDF Extractor SDK works best when you need to quickly make unsearchable PDF in your VB.NET application. In your VB.NET project or application you may simply copy & paste the code and then run your app! Code testing will allow the function to be tested and work properly with your data.

Trial version of ByteScout PDF Extractor SDK is available for free. Source code samples are included to help you with your VB.NET app.

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MakeUnsearchablePDF.VS2005.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>8.0.50727</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{4A4B93A3-FEF6-4469-B506-1A632EB601FF}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>MakeUnsearchablePDF.Module1</StartupObject> <RootNamespace>MakeUnsearchablePDF</RootNamespace> <AssemblyName>MakeUnsearchablePDF</AssemblyName> <MyType>Console</MyType> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.PDFExtractor, Version=6.10.0.2136, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> </Reference> <Reference Include="System" /> <Reference Include="System.Data" /> <Reference Include="System.Deployment" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Import Include="Microsoft.VisualBasic" /> <Import Include="System" /> <Import Include="System.Collections" /> <Import Include="System.Collections.Generic" /> <Import Include="System.Data" /> <Import Include="System.Diagnostics" /> </ItemGroup> <ItemGroup> <Compile Include="Module1.vb" /> <Compile Include="My Project\AssemblyInfo.vb" /> <Compile Include="My Project\Application.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Application.myapp</DependentUpon> </Compile> <Compile Include="My Project\Resources.Designer.vb"> <AutoGen>True</AutoGen> <DesignTime>True</DesignTime> <DependentUpon>Resources.resx</DependentUpon> </Compile> <Compile Include="My Project\Settings.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Settings.settings</DependentUpon> <DesignTimeSharedInput>True</DesignTimeSharedInput> </Compile> </ItemGroup> <ItemGroup> <EmbeddedResource Include="My Project\Resources.resx"> <Generator>VbMyResourcesResXFileCodeGenerator</Generator> <LastGenOutput>Resources.Designer.vb</LastGenOutput> <CustomToolNamespace>My.Resources</CustomToolNamespace> <SubType>Designer</SubType> </EmbeddedResource> </ItemGroup> <ItemGroup> <Content Include="..\..\sample1.pdf"> <Link>sample1.pdf</Link> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <None Include="My Project\Application.myapp"> <Generator>MyApplicationCodeGenerator</Generator> <LastGenOutput>Application.Designer.vb</LastGenOutput> </None> <None Include="My Project\Settings.settings"> <Generator>SettingsSingleFileGenerator</Generator> <CustomToolNamespace>My</CustomToolNamespace> <LastGenOutput>Settings.Designer.vb</LastGenOutput> </None> </ItemGroup> <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.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>

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MakeUnsearchablePDF.VS2008.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>9.0.21022</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{4A4B93A3-FEF6-4469-B506-1A632EB601FF}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>MakeUnsearchablePDF.Module1</StartupObject> <RootNamespace>MakeUnsearchablePDF</RootNamespace> <AssemblyName>MakeUnsearchablePDF</AssemblyName> <MyType>Console</MyType> <FileUpgradeFlags> </FileUpgradeFlags> <OldToolsVersion>2.0</OldToolsVersion> <UpgradeBackupLocation> </UpgradeBackupLocation> <PublishUrl>publish\</PublishUrl> <Install>true</Install> <InstallFrom>Disk</InstallFrom> <UpdateEnabled>false</UpdateEnabled> <UpdateMode>Foreground</UpdateMode> <UpdateInterval>7</UpdateInterval> <UpdateIntervalUnits>Days</UpdateIntervalUnits> <UpdatePeriodically>false</UpdatePeriodically> <UpdateRequired>false</UpdateRequired> <MapFileExtensions>true</MapFileExtensions> <ApplicationRevision>0</ApplicationRevision> <ApplicationVersion>1.0.0.%2a</ApplicationVersion> <IsWebBootstrapper>false</IsWebBootstrapper> <UseApplicationTrust>false</UseApplicationTrust> <BootstrapperEnabled>true</BootstrapperEnabled> <TargetFrameworkVersion>v3.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.PDFExtractor, Version=6.10.0.2136, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout PDF Extractor SDK\net3.50\Bytescout.PDFExtractor.dll</HintPath> </Reference> <Reference Include="System" /> <Reference Include="System.Core"> <RequiredTargetFramework>3.5</RequiredTargetFramework> </Reference> <Reference Include="System.Data" /> <Reference Include="System.Deployment" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Import Include="Microsoft.VisualBasic" /> <Import Include="System" /> <Import Include="System.Collections" /> <Import Include="System.Collections.Generic" /> <Import Include="System.Data" /> <Import Include="System.Diagnostics" /> <Import Include="System.Linq" /> </ItemGroup> <ItemGroup> <Compile Include="Module1.vb" /> <Compile Include="My Project\AssemblyInfo.vb" /> <Compile Include="My Project\Application.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Application.myapp</DependentUpon> </Compile> <Compile Include="My Project\Resources.Designer.vb"> <AutoGen>True</AutoGen> <DesignTime>True</DesignTime> <DependentUpon>Resources.resx</DependentUpon> </Compile> <Compile Include="My Project\Settings.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Settings.settings</DependentUpon> <DesignTimeSharedInput>True</DesignTimeSharedInput> </Compile> </ItemGroup> <ItemGroup> <EmbeddedResource Include="My Project\Resources.resx"> <Generator>VbMyResourcesResXFileCodeGenerator</Generator> <LastGenOutput>Resources.Designer.vb</LastGenOutput> <CustomToolNamespace>My.Resources</CustomToolNamespace> <SubType>Designer</SubType> </EmbeddedResource> </ItemGroup> <ItemGroup> <Content Include="..\..\sample1.pdf"> <Link>sample1.pdf</Link> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <None Include="My Project\Application.myapp"> <Generator>MyApplicationCodeGenerator</Generator> <LastGenOutput>Application.Designer.vb</LastGenOutput> </None> <None Include="My Project\Settings.settings"> <Generator>SettingsSingleFileGenerator</Generator> <CustomToolNamespace>My</CustomToolNamespace> <LastGenOutput>Settings.Designer.vb</LastGenOutput> </None> </ItemGroup> <ItemGroup> <BootstrapperPackage Include="Microsoft.Net.Client.3.5"> <Visible>False</Visible> <ProductName>.NET Framework Client Profile</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.2.0"> <Visible>False</Visible> <ProductName>.NET Framework 2.0 %28x86%29</ProductName> <Install>true</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.0"> <Visible>False</Visible> <ProductName>.NET Framework 3.0 %28x86%29</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.5"> <Visible>False</Visible> <ProductName>.NET Framework 3.5</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1"> <Visible>False</Visible> <ProductName>.NET Framework 3.5 SP1</ProductName> <Install>false</Install> </BootstrapperPackage> </ItemGroup> <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.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>

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MakeUnsearchablePDF.VS2010.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>9.0.30729</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{4A4B93A3-FEF6-4469-B506-1A632EB601FF}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>MakeUnsearchablePDF.Module1</StartupObject> <RootNamespace>MakeUnsearchablePDF</RootNamespace> <AssemblyName>MakeUnsearchablePDF</AssemblyName> <MyType>Console</MyType> <FileUpgradeFlags> </FileUpgradeFlags> <OldToolsVersion>3.5</OldToolsVersion> <UpgradeBackupLocation> </UpgradeBackupLocation> <IsWebBootstrapper>false</IsWebBootstrapper> <TargetFrameworkVersion>v4.0</TargetFrameworkVersion> <PublishUrl>publish\</PublishUrl> <Install>true</Install> <InstallFrom>Disk</InstallFrom> <UpdateEnabled>false</UpdateEnabled> <UpdateMode>Foreground</UpdateMode> <UpdateInterval>7</UpdateInterval> <UpdateIntervalUnits>Days</UpdateIntervalUnits> <UpdatePeriodically>false</UpdatePeriodically> <UpdateRequired>false</UpdateRequired> <MapFileExtensions>true</MapFileExtensions> <ApplicationRevision>0</ApplicationRevision> <ApplicationVersion>1.0.0.%2a</ApplicationVersion> <UseApplicationTrust>false</UseApplicationTrust> <BootstrapperEnabled>true</BootstrapperEnabled> <TargetFrameworkProfile /> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022,42353,42354,42355</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>MakeUnsearchablePDF.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022,42353,42354,42355</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.PDFExtractor, Version=6.10.0.2136, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout PDF Extractor SDK\net4.00\Bytescout.PDFExtractor.dll</HintPath> </Reference> <Reference Include="System" /> <Reference Include="System.Data" /> <Reference Include="System.Deployment" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Import Include="Microsoft.VisualBasic" /> <Import Include="System" /> <Import Include="System.Collections" /> <Import Include="System.Collections.Generic" /> <Import Include="System.Data" /> <Import Include="System.Diagnostics" /> </ItemGroup> <ItemGroup> <Compile Include="Module1.vb" /> <Compile Include="My Project\AssemblyInfo.vb" /> <Compile Include="My Project\Application.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Application.myapp</DependentUpon> </Compile> <Compile Include="My Project\Resources.Designer.vb"> <AutoGen>True</AutoGen> <DesignTime>True</DesignTime> <DependentUpon>Resources.resx</DependentUpon> </Compile> <Compile Include="My Project\Settings.Designer.vb"> <AutoGen>True</AutoGen> <DependentUpon>Settings.settings</DependentUpon> <DesignTimeSharedInput>True</DesignTimeSharedInput> </Compile> </ItemGroup> <ItemGroup> <EmbeddedResource Include="My Project\Resources.resx"> <Generator>VbMyResourcesResXFileCodeGenerator</Generator> <LastGenOutput>Resources.Designer.vb</LastGenOutput> <CustomToolNamespace>My.Resources</CustomToolNamespace> <SubType>Designer</SubType> </EmbeddedResource> </ItemGroup> <ItemGroup> <Content Include="..\..\sample1.pdf"> <Link>sample1.pdf</Link> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <None Include="My Project\Application.myapp"> <Generator>MyApplicationCodeGenerator</Generator> <LastGenOutput>Application.Designer.vb</LastGenOutput> </None> <None Include="My Project\Settings.settings"> <Generator>SettingsSingleFileGenerator</Generator> <CustomToolNamespace>My</CustomToolNamespace> <LastGenOutput>Settings.Designer.vb</LastGenOutput> </None> </ItemGroup> <ItemGroup> <BootstrapperPackage Include="Microsoft.Net.Client.3.5"> <Visible>False</Visible> <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.2.0"> <Visible>False</Visible> <ProductName>.NET Framework 2.0 %28x86%29</ProductName> <Install>true</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.0"> <Visible>False</Visible> <ProductName>.NET Framework 3.0 %28x86%29</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.5"> <Visible>False</Visible> <ProductName>.NET Framework 3.5</ProductName> <Install>false</Install> </BootstrapperPackage> <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1"> <Visible>False</Visible> <ProductName>.NET Framework 3.5 SP1</ProductName> <Install>false</Install> </BootstrapperPackage> </ItemGroup> <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.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>

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Module1.vb
      
Imports Bytescout.PDFExtractor Module Module1 Sub Main() ' Create Bytescout.PDFExtractor.UnsearchablePDFMaker instance Dim unsearchablePDFMaker = New UnsearchablePDFMaker() unsearchablePDFMaker.RegistrationName = "demo" unsearchablePDFMaker.RegistrationKey = "demo" ' Load sample PDF document unsearchablePDFMaker.LoadDocumentFromFile("sample1.pdf") ' Set PDF rendering resolution to 150 DPI. Higher value - better quality, but larger output file. unsearchablePDFMaker.RenderingResolution = 150 ' Set embedded images format unsearchablePDFMaker.ImageFormat = EmbeddedImageFormat.PNG ' Process the document unsearchablePDFMaker.MakePDFUnsearchable("result.pdf") ' Cleanup unsearchablePDFMaker.Dispose() ' Open the result PDF file in default associated application System.Diagnostics.Process.Start("result.pdf") End Sub End Module

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