DotnetImageThumbnail 1.0.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package DotnetImageThumbnail --version 1.0.0
                    


                    

                
NuGet\Install-Package DotnetImageThumbnail -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="DotnetImageThumbnail" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="DotnetImageThumbnail" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="DotnetImageThumbnail" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add DotnetImageThumbnail --version 1.0.0
                    


                    

                
#r "nuget: DotnetImageThumbnail, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package DotnetImageThumbnail@1.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=DotnetImageThumbnail&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=DotnetImageThumbnail&version=1.0.0
                    


                            Install as a Cake Tool

.NET Image Thumbnail Library

A high-performance .NET 10 library for creating image thumbnails with support for multiple image formats and advanced processing capabilities. The library provides three providers, selected at runtime via dependency injection:

  • Skia (ImageProvider.Skia): Cross-platform solution with superior image quality
  • Advanced Skia (ImageProvider.AdvancedSkia): Cross-platform with advanced processing (cropping, filtering, format conversion)
  • GDI+ (ImageProvider.GdiPlus): Windows-native solution using System.Drawing

🚀 Features

  • Multiple Implementation Options: Choose between SkiaSharp (cross-platform) or GDI+ (Windows-native) via dependency injection
  • High-Quality Thumbnail Generation: Create thumbnails with variable width/height while maintaining aspect ratio
  • Advanced Image Processing: Enhanced implementation with cropping, filtering, and format conversion
  • Multiple Image Formats: Support for PNG, JPEG, WebP, AVIF, BMP, GIF, and ICO formats
  • Intelligent File Management: Automatic thumbnail naming and cache management
  • Performance Optimized: Built on industry-standard graphics libraries
  • Flexible Deployment: Cross-platform with SkiaSharp or Windows-optimized with GDI+

📦 Installation

Prerequisites

  • .NET 10.0 or higher
  • SkiaSharp 3.119.4 (SkiaSharp providers)
  • System.Drawing.Common 10.0.12 (GDI+ provider, Windows-only)
  • Codenet.Drawing.Common.GdiPlus 2.0.4 (GDI+ provider)

Package Installation

Build the library:

dotnet build

Register image services and choose a provider:

using dotnet_image_thumbnail.Library.Image.Configuration;

services.AddImageServices(ImageProvider.Skia);         // default, cross-platform
services.AddImageServices(ImageProvider.AdvancedSkia); // cross-platform, advanced features
services.AddImageServices(ImageProvider.GdiPlus);      // Windows-only

🏗️ Architecture

The library is built around a modular architecture with clear separation of concerns:

Core Interfaces

  • IImageHelper: Basic thumbnail creation and image saving functionality

  • IImageDecoder: Image format detection and conversion utilities

  • IImageQuantizer: Color quantization for optimized file sizes

  • IImageThumbnailManager: High-level thumbnail management with caching

  • IEnhancedImageHelper: Advanced features including cropping, filtering, and format conversion

Choosing a Provider

SkiaSharp (ImageProvider.Skia / ImageProvider.AdvancedSkia) - Recommended for:

  • Cross-platform applications (Windows, macOS, Linux)
  • Applications requiring advanced image processing features
  • Modern image format support (WebP, AVIF)
  • High-quality image rendering with anti-aliasing

GDI+ (ImageProvider.GdiPlus) - Recommended for:

  • Windows-only applications
  • Integration with existing System.Drawing code
  • Legacy system compatibility

📊 Implementation Comparison

Feature SkiaSharp GDI+
Platform Support Windows, macOS, Linux Windows only
Dependencies SkiaSharp NuGet package System.Drawing.Common + Codenet.Drawing.Common.GdiPlus
Modern Formats WebP, AVIF, all formats Limited format support
Image Quality Superior anti-aliasing Standard quality
Performance Optimized for all platforms Windows-optimized
Memory Usage Efficient with proper disposal Native .NET memory management
Advanced Features Filtering, cropping, effects Basic operations
Deployment Size Larger (includes SkiaSharp native libs) Windows-only

🎨 Supported Image Formats

Format Extension Read Write Compression
PNG .png ✅ ✅ Lossless
JPEG .jpg, .jpeg ✅ ✅ Lossy
WebP .webp ✅ ✅ Both
AVIF .avif ✅ ✅ Advanced
BMP .bmp ✅ ✅ Uncompressed
GIF .gif ✅ ✅ Lossless
ICO .ico ✅ ✅ Various

Thumbnail Naming Convention

Thumbnails are automatically named using the pattern:

Thumbnail_{OriginalName}_{Width}x{Height}.{Extension}

Example: Thumbnail_photo_300x200.jpeg

🐛 Known Issues

  • Some advanced AVIF features may require additional codec support on certain platforms
  • ICO format writing may have limitations with larger dimensions

📚 Dependencies

  • SkiaSharp: 3.119.4 - Cross-platform 2D graphics library
  • Microsoft.Extensions.DependencyInjection.Abstractions: 10.0.12 - DI service registration
  • System.Drawing.Common: 10.0.12 - Windows native graphics (GDI+ provider, Windows-only)
  • Codenet.Drawing.Common.GdiPlus: 2.0.4 - GDI+ color quantization (GDI+ provider)
  • .NET: 10.0 - Target framework
Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.4 101 9/23/2026
1.0.3 102 9/23/2026
1.0.2 95 9/23/2026
1.0.1 103 9/23/2026
1.0.0 103 9/18/2026