Think of it as a digital safe.

When you place an important document inside a bank safe, someone cannot simply open the door and look inside. Digital encryption follows a similar idea: AES-256 transforms a file into encrypted data that cannot be meaningfully read without the correct key.

Why encrypt documents at all?

Contracts, invoices, document photos, work files and personal images are not always things you want stored as ordinary open files. Encryption adds another layer of protection.

Why AES-256?

AES is one of the best-known standards for protecting digital information. The number 256 refers to the size of the cryptographic key. You do not need the math — the useful idea is that AES-256 is used when confidentiality matters.

Encryption is not the same as a password.

A PIN, Face ID or Touch ID helps control who can access the app. AES-256 controls how the data itself is stored inside the app. These protections can work together.

How does PrivateProScanner use it?

PrivateProScanner stores documents and photos inside the app in encrypted form using AES-256. Encryption and decryption happen automatically in the background.