Batch resizing large collections of images while maintaining their aspect ratio is a common requirement for e-commerce, web galleries, and mobile apps. Aspose.Imaging for .NET simplifies this process by automating the resizing of multiple images with ease, ensuring that no image distortion occurs during the operation.

Real-World Problem

When preparing images for display on various platforms or in different contexts (such as thumbnails for a gallery), it’s crucial to maintain their aspect ratios. Fixed dimensions can lead to distorted or cropped images, which is undesirable from both an aesthetic and user experience perspective.

Solution Overview

Aspose.Imaging for .NET provides robust tools to loop through folders of images, calculate new sizes based on target width or height, and resize them proportionally without manual calculations. This ensures that all resized images retain their original aspect ratios, preserving the integrity of your visual content.

Prerequisites

Before diving into the implementation details, ensure you have the following setup:

  1. Visual Studio 2019 or later
  2. .NET 6.0 or later (or .NET Framework 4.6.2+)
  3. Aspose.Imaging for .NET from NuGet
  4. A folder with your images (JPG, PNG, BMP, etc.)

You can install the necessary package via the Package Manager Console:

PM> Install-Package Aspose.Imaging

Complete Code Example C# : Batch Resize Images with Aspect Ratio

Below is a full working code example that demonstrates how to batch resize images while preserving their aspect ratio using Aspose.Imaging for .NET.

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