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Adobe ACROBAT X STANDARD Manual

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USING ACROBAT X STANDARD
Digital signatures
Last updated 10/11/2011
Remove a digital signature
❖ Do one of the following:
• To remove a signature, right-click the signature field and choose Clear Signature.
• To remove all signatures in a PDF, choose Clear All Signature Fields from the options menu in the Signatures panel.
You cannot remove a signature unless you are the one who placed it and you have the digital ID for signing it installed.
To delete the signature field in Acrobat, choose Tools > Content > Select Object. Then select the signature field and
press the Delete key.
Additional resources
For more information on digital signatures, see these resources:
• Adobe Systems Information Assurance initiatives:
blogs.adobe.com/security/2009/05/sign_here_getting_started_with.html
• Adobe Security Partner Community: www.adobe.com/security/partners/index.html
• Creating a Digital ID Profile in Acrobat 9 (Acrobat X user interface is different):
www.peachpit.com/articles/article.aspx?p=1272552.
Validating signatures
Set your verification preferences in advance. This helps ensure that signatures are valid when you open a PDF and
verification details appear with the signature. See
“Set signature verification preferences” on page 228 for details.
When signatures are validated, an icon appears in the document message bar to indicate the signature status.
Additional status details appear in the Signatures panel and in the Signature Properties dialog box.
Signatures panel overview
The Signatures panel displays information about each signature in the current document and the change history of the
document since the first signature. Each signature has an icon identifying its verification status. Verification details are
listed beneath each signature and can be viewed by expanding the signature. The Signatures panel also provides
information about the time the document was signed, and trust and signer details.
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