I just found out that you can't withdraw a designated amount of Bitcoin from paper wallets, you can only sweep or import them.
This seems kind of weird to me. What is the point of a paper wallet if its sole purpose is to later on be swept clean of its coins? If security is an issue, wouldn't it make more sense to have a software bitcoin wallet that runs off an encrypted usb drive?
Well you can withdraw a designated amount.
You need to import the paper wallet into a software/hardware/online wallet, choose the "designated amount", and transfer.
After that, you would then delete your privatekey from the software/hardware/online wallet, to "retain the paper wallet".
But since you have used some of your paper wallet on a online computer, it is now vulnerable to a thief (malware, loggers, etc).
But of course, as soon as you entered the privatekey into any computer to send the "designated amount", you just made the paper wallet useless.
You should transfer all remaining funds on that paper wallet to another paper wallet (you should be generating all paper wallets offline).
Technically, you are supposed to transfer your btc to a new address after each transaction, whether paper wallet or not.