Can I use Electrum seed as a paper wallet?
You should create your wallet from a pc that will never connect to the internet again if you want to secure your bitcoins 99.99%

If you don't have another PC, use Ubuntu Live CD/USB.


Boot from Ubuntu live cd/usb.
Install Electram, Bitcoin core, or any tools that enable you to generate wallet and create transactions.
Generate your wallet.
Write the seed (or private keys) on a paper.
Re-boot your pc.


But, in this way, you need to install Electram each time you need to sign a transaction.