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I don't understand why the DPI parameters on the RenderTargetBitmap are used the way they seem to be used. Quite often I see code that deals with non-standard DPI settings by adjusting the image size based on the DPI like this: new RenderTargetBitmap ((int) (width/96d)*dpi, (int) (height/96d)*dpi, dpi, dpi, PixelFormats.Pbgra32); Examples: http://blogs.msdn.com/b/jaimer/archive/2009/07/03/rendertargetbitmap-tips.aspx (via web.archive.org ) ContentControl + RenderTargetBitmap + empty image http://social.msdn.microsoft.com/forums/en-US/wpf/thread/984da366-33d3-4fd3-b4bd-4782971785f8/ Other times the dpi seems to be hard coded to either 96 or different values like so: new RenderTargetBitmap (width, height, 96, 96, PixelFormats.Pbgra32); Examples: http://www.i-programmer.info/programming/wpf-workings/538-rendertargetbitmap-visual-vector-to-bitmap.html http://www.ericsink.com/wpf3d/3_Bitmap.html http://dedjo.blogspot.com/2008/05/performance-appliance-of.html <a href="https://stackoverflow.com/questions

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