Creating Filled Rectangle

Introduction

Have you ever wanted to create visually stunning PDFs programmatically? If so, you’re in the right place! In this tutorial, we’ll explore Aspose.PDF for .NET, a powerful library that simplifies PDF document manipulation. Today, we’ll focus on creating a filled rectangle within a PDF file. Whether you’re a seasoned developer or just starting, this guide will walk you through each step in a friendly and engaging manner. So, grab your coding hat, and let’s get started!

Prerequisites

Before we dive into the code, ensure you have the following:

1. Visual Studio: Install Visual Studio on your machine, as it’s an excellent IDE for .NET development.
2. Aspose.PDF for .NET: Download and install the Aspose.PDF library from here.
3. Basic Knowledge of C#: Familiarity with C# programming will help you understand the code snippets better.

Step 1: Create a New Project

1. Open Visual Studio and create a new Console Application project.
2. Name your project appropriately.

Step 2: Add Aspose.PDF Reference

1. Right-click on your project in the Solution Explorer.
2. Select Manage NuGet Packages.
3. Search for Aspose.PDF and install the latest version.

using System.IO;
using System;
using Aspose.Pdf;

Now that we have everything set up, let’s dive into the code!

Step 3: Set Up Your Document Directory

Specify the path where your PDF will be saved:

// The path to the documents directory.
string dataDir = "YOUR DOCUMENT DIRECTORY";

Replace "YOUR DOCUMENT DIRECTORY" with the actual path on your machine where you want to save the PDF.

Step 4: Create a Document Instance

Initialize a new PDF document:

// Create Document instance
Document doc = new Document();

Step 5: Add a Page to the Document

Every PDF needs at least one page. Let’s add one:

// Add page to pages collection of PDF file
Page page = doc.Pages.Add();

Step 6: Create a Graph Instance

A Graph instance acts as a canvas for drawing shapes:

// Create Graph instance
Aspose.Pdf.Drawing.Graph graph = new Aspose.Pdf.Drawing.Graph(100.0, 400.0);

Step 7: Add the Graph to the Page

Attach the graph to the page:

// Add graph object to paragraphs collection of page instance
page.Paragraphs.Add(graph);

Step 8: Create a Rectangle Instance

Define the rectangle’s position and size:

// Create Rectangle instance
Aspose.Pdf.Drawing.Rectangle rect = new Aspose.Pdf.Drawing.Rectangle(100, 100, 200, 120);

Step 9: Specify the Fill Color

Choose a color for your rectangle. For this example, we’ll use red:

// Specify fill color for Graph object
rect.GraphInfo.FillColor = Aspose.Pdf.Color.Red;

Step 10: Add the Rectangle to the Graph

Add the rectangle to the graph:

// Add rectangle object to shapes collection of Graph object
graph.Shapes.Add(rect);

Step 11: Save the PDF Document

Finally, save your document to the specified directory:

dataDir = dataDir + "CreateFilledRectangle_out.pdf";
// Save PDF file
doc.Save(dataDir);

Step 12: Confirmation Message

Print a confirmation message to indicate success:

Console.WriteLine("\nFilled rectangle object created successfully.\nFile saved at " + dataDir);

Conclusion

Congratulations! You’ve successfully created a filled rectangle in a PDF document using Aspose.PDF for .NET. This powerful library opens up a world of possibilities for PDF manipulation, allowing you to generate stunning documents programmatically. Whether you’re creating reports, invoices, or any other type of PDF, Aspose.PDF has got you covered.

FAQ’s

What is Aspose.PDF for .NET?

Aspose.PDF for .NET is a library that allows developers to create, manipulate, and convert PDF documents programmatically.

Can I use Aspose.PDF for free?

Yes, Aspose offers a free trial version that you can use to explore the library’s features. You can download it here.

Is there a way to get support for Aspose.PDF?

Absolutely! You can get support through the Aspose forum here.

How can I purchase Aspose.PDF?

You can buy Aspose.PDF by visiting the purchase page here.

What types of shapes can I create with Aspose.PDF?

You can create various shapes, including rectangles, circles, lines, and more, using the Aspose.PDF library.