Seal and root certificate

Sealed Print seals every signed document with its own certificate (Tiny Tools Microservices GmbH) and a timestamp. Any change after signing breaks the seal.

Root certificate

SHA-256 fingerprint

Download the root certificate

Trust the seal in Adobe Acrobat Reader

  1. Download the root certificate and compare its fingerprint with the one on this page.
  2. In Acrobat Reader, open Preferences → Signatures → Identities & Trusted Certificates → More.
  3. Select Trusted Certificates → Import, choose the file and trust it for signatures and certified documents.
  4. Without this step the reader shows the validity as unknown, but still confirms that the document was not changed.

What the seal proves

The seal proves that the document comes from Sealed Print and was not changed after signing. The signatures are simple electronic signatures (eIDAS): evidence of who signed and when, not a qualified signature.

Every signed document also has a verification page; the code is on every page. Check a document