Adobe offers free online storage space of 5GB through their Acrobat Document Service. But the service is a nightmare to use – you can upload files only one at a time and you cannot upload folders.
CloudDrive is a free software that makes your Adobe Acrobat Document account easier to manage. With CloudDrive you can upload files to Adobe Acrobat in bulk and even entre folders. Files can be uploaded by simply drag and drop, by copy-paste or using the upload button.