When I checked the file size in properties, size didn't change even a byte, but only "size on disk" changed decreasinly. pdf, and I can just keep it that way, putting it in usb drives or other newly installed PC and just use it as it is just normal file, without manually decompressing it and such? for example, let's say I compressed a file named MYDOCUMENT. how can this be real? if input changes, hash output must change(except in case of collision which is pretty rare and is off topic). but it seems like it has different use case than that.Īnd what's most interesting is the file is compressed but file's hash output remained same(short experiment using 3rd party hash calculator). Simple way to do this is just go to properties and check "compress contents to save disk space" and you're all set.įirstly heard of it I thought it was just like winzip compressing files to reduce size or combile all files in one zipped file. Until not so Long ago, I've not even known that you could compress specific folders, files or even entire drives using windows' builtin compression.
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