FREE FOR THE RECIPIENT, FOR LIFE

Verify a document

Drop the PDF here. In one second you see where it comes from and whether it has been modified. Free, in two clicks.

Drop a PDF here to verify

or paste · files stay on your device

STEP 01

Drop or paste

The PDF is read in your browser. The file stays on your device.

STEP 02

We compare the seal

The document's seal is checked against the one the issuer added, in milliseconds.

STEP 03

Read the verdict

Authentic, modified, or not certified. With a public ID, anyone can check it again.

TAMPER DETECTION · TIMELINE OF A CHANGE

When a sealed PDF is altered after issuance, the seal records it.

The verdict shows the moment of issuance and every change since. The document's content stays private.

EVENT LOG · INV-2026-0342

● TAMPERED

YOU BUILD SOFTWARE

Want every document issued from your software to go out with this proof?