PNG converter

If you’re looking to convert PDF documents into PNG images using .NET, Aspose.PDF for .NET provides a robust solution. In this article, we’ll walk through the essential steps to create an object, add a data source, and run the process method using the Aspose.PDF library.

Prerequisites

You will need the following:

  • Visual Studio 2019 or later
  • Aspose.PDF for .NET 24.1 or later
  • A sample PDF file

Code Walkthrough

The code below demonstrates a PNG conversion demo using the Aspose.PDF PNG Plugin:

using Aspose.Pdf.Plugins;

//....

// Create a new instance of the PngOptions class.
var convertorOptions = new PngOptions();

// Add the input and output paths to the PngOptions.
convertorOptions.AddInput(new FileDataSource(Path.Combine(@"C:\Samples\", "sample.pdf")));
convertorOptions.AddOutput(new FileDataSource(Path.Combine(@"C:\Samples\", "images")));

// Set the output resolution to 300 DPI.
convertorOptions.OutputResolution = 300;

// Create a new instance of the Png class.
Png converter = new ();

// Process the PNG conversion and get the result container.
ResultContainer resultContainer = converter.Process(convertorOptions);

// Print the result to the console.
foreach (FileResult operationResult in resultContainer.ResultCollection.Cast<FileResult>())
{
      Console.WriteLine(operationResult.Data.ToString());
}

Let’s break down the key steps:

  1. Create an Object (PngOptions and Png)

    The code starts by creating an instance of the PngOptions class to configure the PNG conversion. Additionally, an instance of the Png class is created for further processing.

  2. Add Data Source

    The input PDF file path is added to the PngOptions using the AddInput method. Similarly, the output path for the PNG images is added using the AddOutput method.

  3. Set Output Resolution

    The code sets the output resolution to 300 DPI using the OutputResolution property of the PngOptions class.

  4. Run Process Method

    The PNG conversion is initiated by calling the Process method on the Png class, passing the configured PngOptions. The result is stored in the resultContainer.

  5. Handle Result

    The code prints the result to the console, showcasing the converted file path(s).

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