>
✍️ Cryptographically sign PDFs and Office files · Adobe-trusted (AATL)
Certificates › Document Signing Certificates
Document Trust · Document Signing

Document Signing Certificates

Adobe-trusted, tamper-evident digital signatures for PDFs, Word and Excel documents.

A document-signing certificate cryptographically signs PDFs and Microsoft Office files so anyone can verify two things: who signed, and that no byte has changed since. SSL.com is on the Adobe Approved Trust List (AATL), so signatures display as trusted in Adobe Reader without extra setup. Three tiers: by verified individual, by verified organization, or both at once.

Adobe Approved Trust List Microsoft Office support Tamper-evident sealing Long-term validation (LTV)

Choose the document-signing tier that matches your authority

Independent professional, business signer, or both at once.

IV · Individual

IV Document Signing

Sign documents as a verified individual — your real legal identity on every PDF.

  • Government-ID validation
  • Adobe Approved Trust List
  • Office signing support
  • Long-term validation
Identity-grade Learn more →
OV · Organization

OV Document Signing

Sign documents under your verified company identity — contracts, policies, invoices.

  • Organization validation
  • Adobe-trusted signatures
  • Built for business workflows
  • Office support included
Business-grade Learn more →
IV+OV · Both

IV+OV Document Signing

Strongest tier — verified person AND verified employer in every signature.

  • Person + organization verified
  • Strongest doc-signing tier
  • For high-stakes documents
  • Audit-ready
Enterprise Learn more →

Document Signing tiers compared

IVOVIV+OV
ValidatesIndividual identityOrganizationBoth
Signature showsLegal nameCompanyName + company
ForIndependent professionalsBusiness document workflowsHigh-stakes / regulated
Adobe-trustedYes (AATL)Yes (AATL)Yes (AATL)
Issued in1–3 days1–3 days3–7 days

Frequently asked questions

How is this different from DocuSign?

Most e-signature platforms produce signatures backed by their own audit trail. A document-signing certificate produces signatures verifiable independently by any compliant tool — Adobe Reader, Office, or any standard PDF verifier can confirm them on its own.

Will Adobe Reader trust the signatures?

Yes — SSL.com's roots are on the Adobe Approved Trust List (AATL), so signatures appear as trusted in Adobe Reader without any manual root installation.

Does it work in Microsoft Word and Excel?

Yes — both Word and Excel support digital signatures using a document-signing certificate.

What's Long-Term Validation (LTV)?

Extra revocation and timestamp data embedded inside the signed document so the signature remains verifiable even after the certificate eventually expires. Recommended for documents you expect to remain valid years later.

Which tier should I pick?

Independent professional (lawyer, consultant, doctor): IV. Business signing under company name (invoices, contracts as a company): OV. High-stakes documents requiring both person and company verification (executive contracts, regulated industry attestations): IV+OV.

Make your digital documents legally meaningful

Adobe-trusted, tamper-evident signatures — for individuals, for organizations, or for both at once.