Open Litecoin-qt.
Open the debug console.
Type:walletpassphrase "whatever your passphrase is" 2000
Type:importprivkey "what ever your private key is"
Don't panic. Litecoin-qt will take 5-10 minutes and appear frozen while it imports your address.
You have now imported your paper wallet and can spend the litecoins. However, if you send them at this point, they will go to an auto-generated change address.
To put them back on a paper wallet, you should generate a new offline address and send as many as you want there.
-----------------------------------------------------------------------
Also here is another step by step:
Step 1 : Launch your Litecoin-QT client in Offline Mode. This is more secure to import private keys. Once QT client is up, go to Help >> Debug window from the menu bar and then click on “ Console ”.
Step 2 : If your wallet is encrypted you must unlock it first. If not just skip this step and follow step 3. To unlock your wallet, run the following command without quotes, where 600 stands for the seconds your wallet is unlocked.
walletpassphrase "Your Passphrase" "600"
Litecoin Paper Wallet
Step 3 : Now import your private key using following command without quotes.
importprivkey "yourPrivateKey" "Label"
Litecoin Paper Wallet Private Key
Step 4 : Wait for 2-5 minutes while Wallet imports your private key. After 2-5 minutes check your address book for newly imported address.
Litecoin QT Client
Step 5 : That’s it. Now you can send these coins to wherever you want.
Hope this was helpful to you and others who might need it
Oh and if you have some LTC to many you can always send some to me
LgTiSwQNeZMMvGrj3YZPA8MzVPhavzbhc1
