Adobe acrobat reader 7.0 User Manual

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Using the Signatures tab
The Signatures tab lists all the signature fields in the current document. Each signature has 
an icon identifying its current verification status. The blue ribbon icon   indicates that the 
certification is valid. The digital signature icon 
 along with the name of the field in 
the Signatures tab indicates the presence of the empty signature field. The checkmark 
icon 
 indicates that the signature is valid. The question mark icon 
 indicates that 
the signature could not be verified. The warning sign icon 
 indicates that the 
document was modified after the signature was added. 
You can collapse a signature to see only the name, date, and status, or you can expand it to 
see more information.
Icons identifying verification status
To display the Signatures tab:
Choose View > Navigation Tabs > Signatures, or click the Signatures tab in the navigation 
pane. 
You can right-click (Windows) or Control-click (Mac OS) a signature field in the 
Signatures tab to do most signature-related tasks, including signing, clearing, and 
validating signatures. In some cases, however, the signature field may become locked 
after you sign it.
To expand or collapse a signature in the Signatures tab:
Click the plus sign (Windows) or triangle (Mac OS) to the left of the signature to expand 
it. Click the minus sign (Windows) or the rotated triangle (Mac OS) to the left of the 
signature to collapse it.