CoinDream, a paper wallet is not a backup. It doesn't duplicate (make a copy) of the keys in your online (blockchain) or software (QT) wallet. The paper wallet is created by actually transferring the keys (critical information) from the online or sofware wallet onto printed paper. What value you transfer to a paper wallet is no longer on your other wallet(s), until such time as you would transfer it back.
So you can safeguard your holdings by transferring them from other wallets to a paper wallet; but then, they will be unavailable for you to use in your other wallets till you transfer them back. The paper wallet kind sets them aside for safe keeping in a vault or very secure location. If you lose or damage funds stored on a paper wallet, they're lost forever.
Unless you have a substantial amount of btc, you may want to simply backup your QT wallet. Those instructions are readily available. A backup of your QT wallet is a copy, like any other backup file. It's just an emergency saviour if anything happens to your QT wallet. You can just import the backup file into your program, allow it to sync, and you're good as new.
You cannot backup your blockchain wallet. Online wallets are left totally to the protection of your provider. That's generally a good reason to store most of your value in your software wallet (backed up) or paper wallet.
Bitcoin allows you to transfer anywhere in a very easy way and allows you to control your money. The great feature also comes along with high attention to security. Bitcoin provides a very high level of security if used correctly. Always remember that it is your responsibility to take good security precautions in order to protect your money.
