This article was written in 2019. Versions, tools and recommendations may have changed since then. Newer posts are collected under .NET.
This pretty simply snippet exports your Image into a byte-array.
1public static byte[] ToByteArray(this System.Drawing.Image image)
2{
3 using(MemoryStream memoryStream = new MemoryStream())
4 {
5 image.Save(memoryStream);
6 return memoryStream.ToArray();
7 }
8}Usage:
1System.Drawing.Image myImage = .....
2
3byte[] imageAsByteArray = myImage.ToByteArray();Hint: ImageSharp
ImageSharp uses the same signature to export bytes into a MemoryStream
1 SixLabors.ImageSharp.Image myImage = ...
2 using(MemoryStream memoryStream = new MemoryStream())
3 {
4 myImage.Save(outStream);
5 return memoryStream.ToArray();
6 }Related articles
- 11 min read
Containerizing .NET in 2026 Without a Dockerfile
Most .NET Dockerfiles repeat the same five steps: restore, publish, select the matching Microsoft runtime image, copy the output and start …
- 12 min read
Problem Details in ASP.NET Core and .NET 11
builder.Services.AddProblemDetails() registers infrastructure. It does not create an error contract. An ASP.NET Core request can fail during …
- 11 min read
Resilience in .NET with Microsoft.Extensions.Resilience
Retries are the most visible resilience strategy and the easiest one to misuse. Repeating a failing call can recover from a short network …
BEN ABT
Ben is Chief Engineering Officer and Principal Software Engineer at Medialesson.de, with a strong focus on .NET and Microsoft Azure. In his professional role, he designs and builds highly scalable platforms for hybrid and cloud-based scenarios. He also advises companies and C-levels on migrating to the sovereign cloud.
He runs myCSharp.de, the largest and most active German-speaking C# community forum, actively contributes to both his own and external open-source projects and regularly shares his knowledge through his blog, at community events, conferences and as a writer for technical magazines.
Let's Work Together
Looking for an experienced Platform Architect or Engineer for your next project? Whether it's cloud migration, platform modernization or building new solutions from scratch - I'm here to help you succeed.