GUIDES

Learn to read documents the way examiners do

Plain-language guides to document forensics — written from real casework, not recycled listicles. Every technique described here runs automatically in the free checker; these pages explain what the findings mean and how to think about them.

01 · VERIFICATION BASICS

How to tell if a PDF was edited — seven signs that actually work

The PDF format hoards its own history: buried earlier revisions, software trails, timestamp conflicts, impostor fonts. Where the traces live and how damning each one is.

Read the guide → 02 · FONT FORENSICS

The font that caught a prime minister's daughter

A trust declaration dated 2006, typed in a font released in 2007. The Calibri affair is the clearest lesson ever taught in why typography is brutal evidence.

Read the story → 03 · FRAUD DETECTION

How to detect a fake bank statement

Edited originals, template fabrications, and the screenshot dodge — the three ways statements get faked, and the distinct trace each method can't help leaving.

Read the guide → 04 · FILE FORENSICS

PDF metadata: what a file quietly remembers

Dates with timezones, software names, sometimes usernames — and why the same facts stored twice make clumsy tampering almost self-reporting.

Read the guide → 05 · SIGNATURES

Digital signatures: what they prove — and what they don't

Absolute mathematical certainty about some things, silence about others. How to read a signature like an examiner, including the signed-then-modified trick.

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