Option to Disable Zip Format for Free Download in Premium Package

When adding a Free Download to a paid package, the file that the user downloads is provided in a zipped format (even if there is just one file to download). Please provide an option to disable the zip format option. It makes sense to provide a zip file if there are several free files to download at once, but if the Free Download is just one file (e.g., a PDF file), then it makes more sense to just allow the user to download the file without it being zipped first. Thanks!