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how can i get dpi of an image using asp.net c#
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To find out an image's DPI in Windows, right-click on the file name and select Properties > Details. You'll see the DPI in the Image section, labeled Horizontal Resolution and Vertical Resolution. On a Mac, you need to open the image in Preview and select Tools > Adjust Size. It's labeled Resolution.
Right-click on the image and then select "Properties." A window will appear with the image's details. Go to the "Details" tab to see the image's dimensions and resolution.
How about Image.HorizontalResolution and Image.VerticalResolution? Like this:
System.Drawing.Image image = System.Drawing.Image.FromFile("TestImage.bmp");
var dpiX = image.HorizontalResolution;
var dpiY = image.VerticalResolution;
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