ProofLocker - Version 1.1 ProofLocker, the first product to utilize PixLocker technology (from RCMedia Services), is created for the professional photographer or Studio. Designed BY photographers, FOR photographers, ProofLocker will eliminate your proofing expenses while at the same time, guard your images from theft. Most systems simply earmark your images so that you can prove ownership. ProofLocker prevents acquisition in the first place. Now with Batch Import.