Saving a Web file to the cloud should be saving a Web file to the cloud, not saving it locally first then upload it to cloud.
You can save Web files to those six most popular cloud services. You know them. Your devices know them, too.
Files are been transferred directly from Web to your cloud, so it does not use your bandwidth. You can keep doing what you are doing or even turn off your devices, the file will arrive. It just does the right thing.
Ballloon for Develllopers
You can let your users save any files form your Web directly to their cloud services. Jump to develllopers for details.