Verifying documents
Every document signed with Sovrasign carries its own evidence. Anyone can check it, free, without an account, and the file never leaves their device.
- What verification provesA check of a signed PDF shows whether it changed after each signature, whose email address each signature is tied to, and in what order people signed.
- Verify a signed PDFOpen Sovrasign Verify, drop the PDF, and read the result. Free, no account, and the file never leaves your device.
- Read a verification reportWhat "Valid", "Intact, but not every identity is confirmed" and "Not valid" mean, and what each signer's lines say.
- Why Adobe Acrobat says "signature validity is unknown"Acrobat does not know how Sovrasign confirms signers, so it shows an unknown identity even when the document is unchanged. Check it with the Sovrasign verifier.