Posts tagged #AES-256
2 posts
Guides
Surya Prakash
How to Password Protect a PDF (Windows, Mac, Linux, Online) — 2026 Guide
You can password protect a PDF in under a minute on Windows, Mac, and Linux — without paid software. The trick most guides skip: the encryption level dropdown. Adobe Acrobat, macOS Preview, Microsoft Word, and qpdf all support AES-256, but you have to know where to look. Here's the full walkthrough.
Surya Prakash13 min read3
Security & PrivacySurya Prakash
Encrypted Cloud Storage in 2026: At-Rest vs Zero-Knowledge (and What Actually Protects You)
Most encrypted cloud storage providers are lying to you by omission. "AES-256 encrypted" means nothing if they also hold your keys — which most do. This guide breaks down the real distinction: at-rest encryption vs zero-knowledge, which providers actually deliver on the promise, and what to look for before trusting a service with your files.
Surya Prakash12 min read3