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Merge pull request #14 from SyncfusionExamples/WPF-264742
264742 - How to display/generate PDF pages as thumbnails?
2 parents 1051165 + 2c419a1 commit cacee21

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‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/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=v4.8" />
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</startup>
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</configuration>

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/Data/PDF_Succinctly.pdf‎

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‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/DisplayPDFpagesAsThumbnails.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)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}</ProjectGuid>
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<OutputType>WinExe</OutputType>
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<RootNamespace>DisplayPDFpagesAsThumbnails</RootNamespace>
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<AssemblyName>DisplayPDFpagesAsThumbnails</AssemblyName>
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<TargetFrameworkVersion>v4.8</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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<TargetFrameworkProfile />
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</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|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</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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<packageReference Include ="Syncfusion.PdfViewer.Windows" version = "*" />
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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.Deployment" />
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<Reference Include="System.Drawing" />
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<Reference Include="System.Net.Http" />
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<Reference Include="System.Windows.Forms" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Form1.cs">
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<SubType>Form</SubType>
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</Compile>
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<Compile Include="Form1.Designer.cs">
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<DependentUpon>Form1.cs</DependentUpon>
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</Compile>
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<Compile Include="Program.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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<EmbeddedResource Include="Form1.resx">
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<DependentUpon>Form1.cs</DependentUpon>
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</EmbeddedResource>
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<EmbeddedResource Include="Properties\Resources.resx">
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<Generator>ResXFileCodeGenerator</Generator>
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<LastGenOutput>Resources.Designer.cs</LastGenOutput>
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<SubType>Designer</SubType>
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</EmbeddedResource>
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<Compile Include="Properties\Resources.Designer.cs">
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<AutoGen>True</AutoGen>
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<DependentUpon>Resources.resx</DependentUpon>
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</Compile>
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<None Include="packages.config" />
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<None Include="Properties\Settings.settings">
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<Generator>SettingsSingleFileGenerator</Generator>
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<LastGenOutput>Settings.Designer.cs</LastGenOutput>
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</None>
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<Compile Include="Properties\Settings.Designer.cs">
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<AutoGen>True</AutoGen>
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<DependentUpon>Settings.settings</DependentUpon>
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<DesignTimeSharedInput>True</DesignTimeSharedInput>
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</Compile>
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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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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/DisplayPDFpagesAsThumbnails.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 = 17.12.35707.178 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DisplayPDFpagesAsThumbnails", "DisplayPDFpagesAsThumbnails.csproj", "{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}"
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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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{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{2D7B60B6-DB7C-4E04-AFDD-C71BFF712F35}.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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EndGlobal

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/DisplayPDFpagesAsThumbnails_NET.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>WinExe</OutputType>
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<TargetFramework>net8.0-windows</TargetFramework>
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<Nullable>enable</Nullable>
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<UseWindowsForms>true</UseWindowsForms>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.PdfViewer.Windows" Version="*" />
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</ItemGroup>
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</Project>

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/DisplayPDFpagesAsThumbnails_NET.csproj.user‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup />
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<ItemGroup>
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<Compile Update="Form1.cs">
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<SubType>Form</SubType>
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</Compile>
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</ItemGroup>
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</Project>

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/DisplayPDFpagesAsThumbnails_NET.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 = 17.12.35707.178 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DisplayPDFpagesAsThumbnails_NET", "DisplayPDFpagesAsThumbnails_NET.csproj", "{7714F1FB-8A22-4268-96D8-4548D7C17409}"
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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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{7714F1FB-8A22-4268-96D8-4548D7C17409}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{7714F1FB-8A22-4268-96D8-4548D7C17409}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{7714F1FB-8A22-4268-96D8-4548D7C17409}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{7714F1FB-8A22-4268-96D8-4548D7C17409}.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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EndGlobal

‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/Form1.Designer.cs‎

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‎How-to/How-to-display-PDF-pages-as-thumbnails/DisplayPDFpagesAsThumbnails/Form1.cs‎

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using Syncfusion.Windows.Forms.PdfViewer;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace DisplayPDFpagesAsThumbnails
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{
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public partial class Form1 : Form
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{
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string filePath;
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int thumbnailZoomfactor = 4;
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TableLayoutPanel tableLayoutPanel;
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FlowLayoutPanel thumbnailLayoutPanel;
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PdfViewerControl pdfViewerControl;
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public Form1()
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{
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InitializeComponent();
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this.Load += Form1_Load;
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}
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private void Form1_Load(object sender, EventArgs e)
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{
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//Initialize a new TableLayoutPanel and configure the tableLayoutPanel to hold two column and one row
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tableLayoutPanel = new TableLayoutPanel();
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tableLayoutPanel.Dock = DockStyle.Fill;
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tableLayoutPanel.ColumnStyles.Clear();
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tableLayoutPanel.ColumnCount = 2;
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tableLayoutPanel.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 16F));
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tableLayoutPanel.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 84F));
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tableLayoutPanel.RowStyles.Clear();
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tableLayoutPanel.RowCount = 1;
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tableLayoutPanel.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
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//Create a Scrolllable layout panel for the thumbnail images
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thumbnailLayoutPanel = new FlowLayoutPanel
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{
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Dock = DockStyle.Fill,
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AutoScroll = true,
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FlowDirection = FlowDirection.TopDown,
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WrapContents = false,
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};
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//Add the thumbnailLayout to the first column of the tableLayoutPanel
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tableLayoutPanel.Controls.Add(thumbnailLayoutPanel,0,0);
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pdfViewerControl = new PdfViewerControl();
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pdfViewerControl.Dock = DockStyle.Fill;
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//Add the pdfViewer to the second column of the tableLayoutPanel
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tableLayoutPanel.Controls.Add(pdfViewerControl,1,0);
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#if NETCOREAPP
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filePath = @"../../../Data/PDF_Succinctly.pdf";
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#else
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filePath = @"../../Data/PDF_Succinctly.pdf";
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#endif
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// Load the PDF file.
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pdfViewerControl.Load(filePath);
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pdfViewerControl.DocumentLoaded += PdfViewerControl_DocumentLoaded;
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this.Controls.Add(tableLayoutPanel);
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this.WindowState = FormWindowState.Maximized;
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}
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/// <summary>
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/// Triggers once the document is loaded it invoke the conversion of pdf page to image
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/// </summary>
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private void PdfViewerControl_DocumentLoaded(object sender, EventArgs args)
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{
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thumbnailLayoutPanel.Controls.Clear();
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ExportAsImage();
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}
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/// <summary>
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/// Converts the PDF pages into images
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/// </summary>
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private async void ExportAsImage()
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{
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//Calculate height and width of the panel
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float height = pdfViewerControl.LoadedDocument.Pages[0].Size.Height / thumbnailZoomfactor;
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float width = pdfViewerControl.LoadedDocument.Pages[0].Size.Width / thumbnailZoomfactor;
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this.tableLayoutPanel.ColumnStyles[0].SizeType = SizeType.Absolute;
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if (pdfViewerControl.LoadedDocument.Pages.Count > 4)
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{
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this.tableLayoutPanel.ColumnStyles[0].Width = width + 30;
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}
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else
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{
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this.tableLayoutPanel.ColumnStyles[0].Width = width + 5;
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}
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for (int i = 0; i < pdfViewerControl.LoadedDocument.Pages.Count; i++)
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{
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PictureBox picture = new PictureBox();
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//Convert the PDF page as image
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Bitmap image = new Bitmap(await Task.Run(() => pdfViewerControl.LoadedDocument.ExportAsImage(i)), new Size((int)width, (int)height));
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//Set the exported image to the picture control
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picture.Image = image;
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picture.Update();
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picture.Height = (int)height;
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picture.Width = (int)width;
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picture.Visible = true;
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picture.Refresh();
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picture.MouseUp += Picture_MouseUp;
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//Add the picture control to the thumbnailPanel
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thumbnailLayoutPanel.Controls.Add(picture);
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}
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}
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/// <summary>
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/// Triggered whenever the thumbnail images is clicked
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/// </summary>
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private void Picture_MouseUp(object sender, MouseEventArgs e)
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{
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PictureBox pictureBox = (PictureBox)sender;
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//Get the index of the page
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int index = thumbnailLayoutPanel.Controls.IndexOf(pictureBox);
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//Navigate to the specified page
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pdfViewerControl.GoToPageAtIndex(index + 1);
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}
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}
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}

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