The Signatures tab shows certifications and digital signatures placed on a document (including invisible signatures from services such as DocuSign or digital IDs with embedded timestamps) as well as tools for signing and certifying documents. Users are prompted to open it whenever a PDF that has been certified or digitally signed is opened.
To show the Signatures tab, go to View > Tabs > Signatures or press ALT+4.
If the current document has been certified or digitally signed, it will be shown on the Signatures tab. The validation status of each digital signature is shown.
To view the details of a signature, click the toggle arrow to its left.
The Signatures tab toolbar contains several tools for adding and managing digital signatures and certifications.
Sign Document: Creates a signature field and automatically attempts to sign it.
Add Signature Field: Creates a signature field without trying to sign it.
Certify Document: Certifies a document for authenticity.
Validate Signatures: Attempts to validate all signatures in the document.
Preferences: Opens the Signature Preferences.
Working with Digital Signatures
Certifying a Document
Digitally Signing a Document
Validating a Digitally Signed Document