c# - How to get ratio of width x height of an image on disk / file? -

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i have userpictures saved file on hdd. (not in database).

i height , width of *.jpg-files, how that?

(background: must calculate ratio between hight , width bring specified height , width without stretching it).

many formats support header info others don't so... 

 image img = system.drawing.image.fromfile(path);  int height = img.height;  int width = img.width;

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