ByteScout PDF SDK – C# – Draw Text On Rotated Page

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ByteScout PDF SDK – C# – Draw Text On Rotated Page

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ByteScout-PDF-SDK-C-sharp-Draw-Text-On-Rotated-Page.pdf

How to draw text on rotated page in C# with 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.

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DrawHeaderAndFooterOnRotatedPage.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="RotatedPages.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>

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DrawHeaderAndFooterOnRotatedPage.csproj

      <?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" 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>{474F52FF-3928-44EA-8F6F-379E9DAA23FF}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>DrawHeaderAndFooterOnRotatedPage</RootNamespace>
    <AssemblyName>DrawHeaderAndFooterOnRotatedPage</AssemblyName>
    <TargetFrameworkVersion>v2.0</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="Bytescout.PDF, Version=1.0.0.15, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL">
      <SpecificVersion>False</SpecificVersion>
    </Reference>
    <Reference Include="System" />
    <Reference Include="System.Data" />
    <Reference Include="System.Drawing" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.cs" />
  </ItemGroup>
  <ItemGroup>
    <None Include="RotatedPages.pdf">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
  </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>

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Program.cs

      using Bytescout.PDF;
using System.Diagnostics;
using System.Drawing;
using Brush = Bytescout.PDF.Brush;
using Font = Bytescout.PDF.Font;
using SolidBrush = Bytescout.PDF.SolidBrush;
using StringFormat = Bytescout.PDF.StringFormat;


namespace DrawHeaderAndFooterOnRotatedPage
{
    /// <summary>
    /// This example demonstrates how to add header and footer to rotated PDF pages.
    /// </summary>
    class Program
    {
        static void Main()
        {
            // Load document
            Document pdfDocument = new Document(@".\RotatedPages.pdf");
            pdfDocument.RegistrationName = "demo";
            pdfDocument.RegistrationKey = "demo";

            string headerText = "Sample Header";
            string footerText = "Sample Footer";

            // Prepare StringFormat with Center text alignment
            StringFormat stringFormat = new StringFormat { HorizontalAlign = HorizontalAlign.Center };
            // Prepare drawing tools
            Font font = new Font(StandardFonts.Helvetica, 9);
            Brush brush = new SolidBrush(new ColorRGB(255, 0, 0));
            
            for (int i = 0; i < pdfDocument.Pages.Count; ++i)
            {
                Page page = pdfDocument.Pages[i];
                
                page.Canvas.SaveGraphicsState();

                // Calculate the coordinates of the text taking into account the page rotation:

                float headerY = 10;
                float footerY;
                float textRectWidth;
                float textRectHeight = font.GetTextHeight() + 5;

                if (page.RotationAngle == RotationAngle.Rotate0 || page.RotationAngle == RotationAngle.Rotate180)
                {
                    footerY = page.Height - textRectHeight - 10;
                    textRectWidth = page.Width;
                }
                else
                {
                    footerY = page.Width - textRectHeight - 10;
                    textRectWidth = page.Height;
                }

                // Rotate page canvas according to page rotation
                switch (page.RotationAngle)
                {
                    case RotationAngle.Rotate90:
                        page.Canvas.RotateTransform(-90);
                        page.Canvas.TranslateTransform(-page.Height, 0);
                        break;
                    case RotationAngle.Rotate180:
                        page.Canvas.RotateTransform(180);
                        page.Canvas.TranslateTransform(-page.Width, -page.Height);
                        break;
                    case RotationAngle.Rotate270:
                        page.Canvas.RotateTransform(-270);
                        page.Canvas.TranslateTransform(0, -page.Width);
                        break;
                }
                
                // Draw header and footer
                page.Canvas.DrawString(headerText, font, brush, new RectangleF(0, headerY, textRectWidth, textRectHeight), stringFormat);
                page.Canvas.DrawString(footerText, font, brush, new RectangleF(0, footerY, textRectWidth, textRectHeight), stringFormat);

                page.Canvas.RestoreGraphicsState();
            }
            
            // Save document to file
            pdfDocument.Save("result.pdf");

            // Cleanup 
            pdfDocument.Dispose();

            // Open result PDF document in default associated application (for demo purpose)
            ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
            processStartInfo.UseShellExecute = true;
            Process.Start(processStartInfo);
        }
    }
}