Thanks for your quick reply to my last question.
Next question: Is it is true that a paper wallet has only one address and can only have one address maximum?
I want to be 100% sure when I check my balance on blockchain.info that the money is there. If someone were to take my private key, could they generate a new address and transfer money without me seeing it (since I only check the address WRITTEN on the paper wallet)?
Hi Alex, yes paper wallets can have one address only. Here you can read more about paper wallets: https://99bitcoins.com/know-more-send-from-paper-wallet/. If someone has your private key, they fully control your coins, they do not even need to generate a new address.