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  1. PO
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    <p>This above answer is great but i did some fine-tuning and implemented the "keep ratio" of the image so that we don't end up with stretched images.</p> <pre><code> using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Web.Helpers; public static class ResizePng { private static IDictionary&lt;string, ImageFormat&gt; _transparencyFormats = new Dictionary&lt;string, ImageFormat&gt;(StringComparer.OrdinalIgnoreCase) { { "png", ImageFormat.Png }, { "gif", ImageFormat.Gif } }; public static WebImage ResizePreserveTransparency(this WebImage image, int width, int height) { ImageFormat format = null; if (!_transparencyFormats.TryGetValue(image.ImageFormat, out format)) { return image.Resize(width, height); } //keep ratio ************************************* double ratio = (double)image.Width / image.Height; double desiredRatio = (double)width / height; if (ratio &gt; desiredRatio) { height = Convert.ToInt32(width / ratio); } if (ratio &lt; desiredRatio) { width = Convert.ToInt32(height * ratio); } //************************************************ using (Image resizedImage = new Bitmap(width, height)) { using (Bitmap source = new Bitmap(new MemoryStream(image.GetBytes()))) { using (Graphics g = Graphics.FromImage(resizedImage)) { g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; g.DrawImage(source, 0, 0, width, height); } } using (MemoryStream ms = new MemoryStream()) { resizedImage.Save(ms, format); return new WebImage(ms.ToArray()); } } } </code></pre> <p>}</p>
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    1. USAngeloAllary
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      1. VTUpMod
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