Guides — Photo and Document Privacy

The hidden record inside every photo — GPS, timestamps, serial numbers — and when it actually matters.

Mostly yes, and that is less reassuring than it sounds. The exceptions are the everyday cases.

Why black rectangles keep failing in published documents, and the methods that work.

Three methods compared — OS tools, desktop apps, and browser converters — with privacy trade-offs.

Why your iPhone uses this format, where it breaks, and whether AVIF will replace it.

What actually happens to your files when you use a free online converter, and how to check.

Author names, timestamps, and software versions — the fields most people never check before sending.

Step-by-step on Windows, Mac, iPhone, and Android — plus how to disable it for future photos.

Every method on every platform, from right-click properties to command-line batch processing.

How each format stores metadata differently, and why conversion alone does not strip it.

Three approaches compared — Word import, online tools, and image-based conversion — with formatting trade-offs.

Four free methods ranked by quality, convenience, and privacy. Which one fits your situation.

What hidden data travels with your documents and photos, and why ten seconds of cleanup matters.

A simple decision guide for picking the right format before you hit send.

Four ways to strip GPS data — iOS share sheet, Photos app, Settings, and browser tools.

How the format works, what metadata it hides, and common misconceptions about PDF security.

A thirty-second check for hidden data in photos, PDFs, and documents before you hit send.

Four free methods, what each one actually protects, and the limitations most guides skip.

Five ways to compress a PDF — from re-exporting to Ghostscript — and what each method sacrifices.

Free methods for Mac, Windows, and Linux. No paid software, no uploads required.