Yes – once we’ve given you the USB memory stick or DVD with your images on they are yours to do whatever you want with. They’re not copy protected in any way, so you can edit them or rename them as you choose.
Note: We’d strongly recommend that the first thing you do when you get your digital images is to copy them to at least one, if not two, other hard drives or memory sticks. We cannot guarantee that your USB memory stick will not fail or corrupt, and we will only keep a copy of your images for 30 days after completion of the order. If it’s a large photo collection with a lifetime of memories, we’d suggest having at least two backups – and keeping one of them somewhere other than your own house so that in the event you’re burgled or there’s a fire you have another copy.