Most Permanent Resident Cards (PR cards) issued in Canada are valid for five years. If you are a current Permanent Resident of Canada, and your PR card expires in 9 months or lesser, you must renew the card as early as possible.
Once you are eligible to apply, get the right application package, fill in all forms, add the relevant documents, and submit the package after paying the application fee. Some of the documents you may need to submit along with the forms are: