ByteScout PDF SDK – C# – Use PDF as Background to Other PDF

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ByteScout PDF SDK – C# – Use PDF as Background to Other PDF

printable version:
ByteScout-PDF-SDK-C-sharp-Use-PDF-as-Background-to-Other-PDF.pdf

How to use PDF as background to other PDF in C# using ByteScout PDF SDK

ByteScout PDF SDK is the component to help programmers in generating new pdf files, modifying and updating existing pdf documents or pdf forms. Provides support for auto-filling pdf forms, adding text with adjustable font, style, size, font family, new form fields, vector and raster drawings.

On-demand (REST Web API) version:
Web API (on-demand version)

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Program.cs

      using Bytescout.PDF;
using System;
using System.Diagnostics;

namespace UsePDFAsBkgdToOtrPDF
{
    class Program
    {
        static void Main(string[] args)
        {
            var PDFSDK_RegName = "demo";
            var PDFSDK_RegKey = "demo";

            Document templateDoc = new Document { RegistrationName = PDFSDK_RegName, RegistrationKey = PDFSDK_RegKey };
            Document mainDoc = new Document { RegistrationName = PDFSDK_RegName, RegistrationKey = PDFSDK_RegKey };
            Document resultDoc = new Document { RegistrationName = PDFSDK_RegName, RegistrationKey = PDFSDK_RegKey };

            templateDoc.Load(@"./background.pdf");
            mainDoc.Load(@"./sample.pdf");

            // Create GraphicsTemplate object from the first page of the template document
            GraphicsTemplate template = templateDoc.Pages[0].SaveAsTemplate();
            
            for (int i = 0; i < mainDoc.Pages.Count; i++)
            {
                // Create empty page 
                Page resultPage = new Page(mainDoc.Pages[i].Width, mainDoc.Pages[i].Height);

                // Draw the template page as a background before the main content
                resultPage.Canvas.DrawTemplate(template, 0, 0);

                // Draw main content
                GraphicsTemplate mainContentAsTemplate = mainDoc.Pages[i].SaveAsTemplate();
                resultPage.Canvas.DrawTemplate(mainContentAsTemplate, 0, 0);
                
                // Add the created page to the result document
                resultDoc.Pages.Add(resultPage);
            }

            // Save result document
            resultDoc.Save(@"./result.pdf");

            resultDoc.Dispose();
            templateDoc.Dispose();
            mainDoc.Dispose();

            Console.WriteLine("Result file 'result.pdf' generated!");
            Process.Start(@"result.pdf");
            Console.ReadLine();
        }
    }
}

UsePDFAsBkgdToOtrPDF.NETCore.csproj

      <?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
    <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
    <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
    <GenerateAssemblyTrademarkAttribute>false</GenerateAssemblyTrademarkAttribute>
    <GenerateAssemblyCultureAttribute>false</GenerateAssemblyCultureAttribute>
    <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
  </PropertyGroup>
  <ItemGroup>
    <Compile Include="Program.cs" />
    <None Include="background.pdf">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
    <None Include="sample.pdf">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.Windows.Compatibility" Version="2.0.0" />
  </ItemGroup>
  <ItemGroup>
    <Reference Include="Bytescout.PDF">
      <SpecificVersion>False</SpecificVersion>
      <HintPath>c:\Program Files\Bytescout PDF SDK\netcoreapp2.0\Bytescout.PDF.dll</HintPath>
    </Reference>
  </ItemGroup>
</Project>

UsePDFAsBkgdToOtrPDF.csproj

      <?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <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>{8B33CB1C-B6A2-4750-9D1C-EB963DC8A17D}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>UsePDFAsBkgdToOtrPDF</RootNamespace>
    <AssemblyName>UsePDFAsBkgdToOtrPDF</AssemblyName>
    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
    <TargetFrameworkProfile />
  </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>
    <Prefer32Bit>false</Prefer32Bit>
  </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>
    <Prefer32Bit>false</Prefer32Bit>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="Bytescout.PDF, Version=1.8.2.254, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL">
      <SpecificVersion>False</SpecificVersion>
      <HintPath>c:\Program Files\Bytescout PDF SDK\net2.0\Bytescout.PDF.dll</HintPath>
    </Reference>
    <Reference Include="System" />
    <Reference Include="System.Data" />
    <Reference Include="System.Drawing" />
    <Reference Include="System.Xml" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.cs" />
  </ItemGroup>
  <ItemGroup>
    <None Include="background.pdf">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
    <None Include="sample.pdf">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>