Piczard is a Free image manipulation library developed keeping focus on ASP.NET needs.
It provides a variety of tools that can help you to manage images in your ASP.NET applications:

An advanced image upload control with a powerful and intuitive image manipulation interface. See an online demo »
PictureTrimmer: The world's most awesome WYSIWYG image cropping tool for ASP.NET. See an online demo »

An expandable set of classes and methods that allows - in an extremely easy way - to programmatically load, process and save images.
With Piczard, tasks such as image resizing or cropping, can be performed even with a single line of code !. See an online demo »

C#

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// Image Crop new FixedCropConstraint(220, 120).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");  // Image Resize new ScaledResizeConstraint(150, 320).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");  // Watermark new ImageWatermark("watermark.png", ContentAlignment.TopLeft).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");

// Image Crop  new FixedCropConstraint(220, 120).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");    // Image Resize  new ScaledResizeConstraint(150, 320).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");    // Watermark  new ImageWatermark("watermark.png", ContentAlignment.TopLeft).SaveProcessedImageToFileSystem("src.jpg", "out.jpg");