Beyond the seal
A professional digital credential connects verified identity and association-authorized professional information to a digital certificate. When used to authenticate a document, it gives recipients evidence they can verify.
A seal image, an electronic signature, and a certificate-based digital signature may look similar on a document. The evidence behind each one differs.
| Method | What it is | What it’s best used for |
|---|---|---|
Seal or signature image |
A visual reproduction of a seal or signature. |
Provides a familiar appearance, but no independent proof of identity or document integrity. |
Electronic signature |
A broad category of methods used to show intent or approval. |
Contracts, acknowledgements, approvals and lower-risk workflows. |
Digital signature |
Certificate-based cryptographic authentication of signer and document integrity. |
Records requiring stronger identity and integrity evidence. |
Professional digital credential |
Digital certificate tied to verified identity, professional status and association authorization. |
Supplies the professional identity, authority and authenticity when digitally signing work products. |
Seal or signature image
What it is
A visual reproduction of a seal or signature.
What it’s best used for
Provides a familiar appearance, but no independent proof of identity or document integrity.
Electronic signature
What it is
A broad category of methods used to show intent or approval.
What it’s best used for
Contracts, acknowledgements, approvals and lower-risk workflows.
Digital signature
What it is
Certificate-based cryptographic authentication of signer and document integrity.
What it’s best used for
Records requiring stronger identity and integrity evidence.
Professional digital credential
What it is
Digital certificate tied to verified identity, professional status and association authorization.
What it’s best used for
Supplies the professional identity, authority and authenticity when digitally signing work products.
What trust requires
A trusted document needs more than an official appearance. These four qualities help recipients assess its professional origin, integrity, and lasting value.
Identifies the professional and connects their designation to association-approved information.
Provides evidence that the credential and digital signature are genuine and verifiable.
Shows whether the document has changed since it was digitally signed.
Keeps the document readable and its verification evidence available over time.
These approaches can serve useful purposes. For professional work, the question is what each one establishes about identity, authority, authenticity, and integrity.
| Common approach | What it does | What it may not establish |
|---|---|---|
Password-protected PDF |
Restricts access or certain document functions. |
Who authenticated the document, their professional authority, and whether the record has changed. |
Scanned seal image |
Reproduces a familiar visual mark. |
Independent proof of its origin and whether the document has changed. |
Self-signed certificate |
Can create a cryptographic signature and show later changes. |
Independent confirmation of identity and association-authorized professional status. |
Generic e-signature workflow |
Can record intent, approvals, and an audit trail. |
Evidence of the signer’s specific professional authority, if the workflow does not capture it. |
Password-protected PDF
What it does
Restricts access or certain document functions.
What it may not establish
Who authenticated the document, their professional authority, and whether the record has changed.
Scanned seal image
What it does
Reproduces a familiar visual mark.
What it may not establish
Independent proof of its origin and whether the document has changed.
Self-signed certificate
What it does
Can create a cryptographic signature and show later changes.
What it may not establish
Independent confirmation of identity and association-authorized professional status.
Generic e-signature workflow
What it does
Can record intent, approvals, and an audit trail.
What it may not establish
Evidence of the signer’s specific professional authority, if the workflow does not capture it.
A note on longevity: Keeping a PDF is only part of preserving a trusted record. Long-term verification also depends on retaining the signed document and the evidence needed to validate its signature years later.
Document Lifecycle
Professional authentication follows review and approval. If the document changes later, the revised version needs its own authentication and a clear record of what it replaces.
Prepare the work
Create the document and supporting material.
Review the work
Complete the required professional and quality reviews.
Approve the final
Confirm the version ready for professional authentication.
Confirm the signer
Identify the professional authorized to authenticate it.
Sign and seal
Apply the professional digital credential to the final PDF.
Share and verify
Deliver the record so recipients can check the signature.
Revise and re-sign
Authenticate a new version when the approved work changes.
Retain the record
Preserve the signed version and its verification evidence.
