Is it possible to retrieve information about images on a web site without having to atually download the actual image? I am interested in width/height and kb size.
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Is it possible to retrieve information about images on a web site without having to atually download the actual image? I am interested in width/height and kb size.
No. You can get the file size using the
Content-Lengthheader but you would need to at least start downloading the image to get the width/height.Once the image starts downloading you could parse the stream and as @BrokenGlass and @Ed Swangren suggest try to find the image width/height that way.
Having said that, it sounds like an awful lot of work given that you can quickly find the image width/height using available libraries if you download the entire image. Unless you’re dealing with massive images or a massive number of images it may just be easier to download the files and check their size that way.