951026 Creating a Linear Gradient Brush with Multiple Colors in a PDF document

Brushes/Linear-Gradient-Brush-with-Multiple-Colors/.NET/Linear-Gradient-Brush-with-Multiple-Colors.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35707.178 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Linear-Gradient-Brush-with-Multiple-Colors", "Linear-Gradient-Brush-with-Multiple-Colors\Linear-Gradient-Brush-with-Multiple-Colors.csproj", "{4466A1C9-0D8C-4290-A2C3-C0910699BE92}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4466A1C9-0D8C-4290-A2C3-C0910699BE92}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4466A1C9-0D8C-4290-A2C3-C0910699BE92}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4466A1C9-0D8C-4290-A2C3-C0910699BE92}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4466A1C9-0D8C-4290-A2C3-C0910699BE92}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Brushes/Linear-Gradient-Brush-with-Multiple-Colors/.NET/Linear-Gradient-Brush-with-Multiple-Colors/Linear-Gradient-Brush-with-Multiple-Colors.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Linear_Gradient_Brush_with_Multiple_Colors</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
+  </ItemGroup>
+
+</Project>

Brushes/Linear-Gradient-Brush-with-Multiple-Colors/.NET/Linear-Gradient-Brush-with-Multiple-Colors/Program.cs

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+
+using Syncfusion.Pdf.Graphics;
+using Syncfusion.Pdf;
+using Syncfusion.Drawing;
+using System.Reflection.Metadata;
+
+// Create a new PDF document
+using (PdfDocument document = new PdfDocument())
+{
+    // Add a page to the document
+    PdfPage page = document.Pages.Add();
+
+    // Create PDF graphics for the page
+    PdfGraphics graphics = page.Graphics;
+
+    // Create a new PDF linear gradient brush
+    PdfLinearGradientBrush brush = new PdfLinearGradientBrush(
+        new RectangleF(new PointF(0, 0), new SizeF(200, 100)),
+        Color.Red, Color.Blue,
+        PdfLinearGradientMode.Horizontal
+    );
+
+    // Create and configure the color blend
+    PdfColorBlend colorBlend = new PdfColorBlend(4)
+    {
+        // Define the colors for the gradient
+        Colors = new PdfColor[]
+        {
+            Color.Red,
+            Color.Yellow,
+            Color.Green,
+            Color.Blue
+        },
+
+        // Define the position of each color in the gradient
+        Positions = new float[] { 0, 0.3f, 0.7f, 1 }
+    };
+
+    // Apply the color blend to the linear gradient brush
+    brush.InterpolationColors = colorBlend;
+
+    // Draw a rectangle filled with the gradient
+    graphics.DrawRectangle(brush, new RectangleF(0, 0, 200, 100));
+
+    //Create file stream.
+    using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"Output/Output.pdf"), FileMode.Create, FileAccess.ReadWrite))
+    {
+        //Save the PDF document to file stream.
+        document.Save(outputFileStream);
+    }
+}