How to resize image without losing EXIF data?

Resize an image with .NET without losing EXIF data

• What is the best way to resize images using .NET, without losing the EXIF data? I'm okay with using .NET 2 System.Drawing.* classes, WPF classes, or open-source libraries. The only easy way I found to handle this all for now is to use the Graphics.FromImage (.NET 2) to perform the resizing and to re-write the EXIF data with an OpenSource library manually (each piece of data one by one).

• Answer:

  Your suggestion of extracting the EXIF data before resizing, and then re-inserting the EXIF data seems like a decent solution. EXIF data can be defined only for formats like JPEG and TIFF - when you load such an image into a Graphics object for resizing, you're essentially converting the image to a regular bitmap. Hence, you lose the EXIF data. Slightly related thread about EXIF extraction using C# http://stackoverflow.com/questions/58649/how-to-get-the-exif-data-from-a-file-using-c.