How to Verify a Notarized Document (and Spot a Fake Stamp)
A notary seal is an ink impression, and ink is easy to fake. The trust belongs to the commission record, not the stamp. How to check whether a notarization really happened.
Digital Signature vs Electronic Signature: What Actually Proves a Document?
The two terms get used interchangeably. They shouldn't be — one is a legal concept, the other is cryptographic proof. Here's the difference, side by side, and when each is enough.
How to Tell if a Contract Was Altered After Signing
Two copies of "the same" agreement, one clause different. How to prove which version is real — from signature validation to word-level diffs and the PDF's own history.
How to Redact a PDF Properly (Without Leaking the Data)
Drawing a black box over text does not remove the text. The difference between redaction and the appearance of redaction — and a workflow to make sure you're doing the first one.