Seal-It for MS Word Seal-It combines RSA digital signature technology with a patent pending voice signature technology that enables you to verify the identity of the signer even without a digital certificate. Using voice ... Cost: $9 Buy full version       Trial version       Publisher: J&R Software     Descriptions Seal-It for MS Word: Seal-It combines RSA digital signature technology with a patent pending voice signature technology that enables you to verify the identity of the signer even without a digital certificate. Using voice recognition together with a unique affirmation message, users can authenticate the identity of the signatory to the document.