Yes, absolutely!
We do retain all production files, so generally speaking, placing a reorder (in most cases) will be as simple as logging into your account, and placing a reorder from your account.
If you want to receive a copy of your proof sheet from your previous order, simply request it via the Order Notes, or email after your order has been placed.
Due to recent website feature integrations, and upgrades, legacy customers who have not set up a customized order through the current product customizer will be required to set up an order through the customizer app.
This will create the necessary line items for customization charges that will be used as the basis for reordering.