Using Help
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203
Adobe Acrobat Help
Digitally Signing PDF Files
Using Help
|
Contents
|
Index
Back
203
2
If you are not logged in to a profile, in the Log In dialog box, choose your profile, enter
your password, and click Log In. For information on creating a new profile, see
“Creating
profiles” on page 197
.
3
If you are already logged in to a profile, click Show Options to enter a reason for signing
the document. You can either type a reason or choose one from the pop-up menu.
Additionally, you can enter a location for the signature, such as your city, state, or country,
or the hostname of your computer, and you can add contact information.
4
Click Sign, and click Save in the Save As dialog box.
5
To retain a copy of the signed document, click the Save a Copy of the File button on the
toolbar, browse to select a location in which to save the file, and enter a name for the file.
You must save the file in this way to retain a copy.
Verifying signatures
When you verify a signature that was added with Acrobat Self-Sign Security, Acrobat can
confirm the authenticity of the signature in two ways:
•
Acrobat checks to see that the document and the signature have not been altered since
the signing.
•
If you are logged in to a profile and have the signer’s user certificate in your profile’s list
of trusted certificates, Acrobat compares information in the signature against the certif-
icate to verify the identity of the signer.
You can view a signature’s verification status on the document page and in the Signatures
palette.
To verify a signature:
1
In an open document, do one of the following:
•
Click the signature in the document pane. A dialog box indicates the status of the
signature. Click Properties to access the Signature Properties dialog box. Click Verify
Identity to check fingerprint information.
•
Right-click (Windows) or Control-click (Mac OS) on the signature, and click Validate
Signature. In the Validation Status dialog box, on Windows click Verify Identity (if you
are logged in) or Log In (if you are not logged in, and follow the login process); on Mac
OS click Properties and click Verify Identity in the Signature Properties dialog box.
2
In the Verify Identity dialog box, follow the on-screen instructions for verifying finger-
print information. Click Add to List when you are sure that this is a valid user certificate.
(Click Details to see information about the signer.)
3
Click OK in the Alert dialog box, and click Close in the Validation Status dialog box to
verify the signature.
Deleting signatures and clearing signature fields
You can remove a signature totally or you can clear a signature field (that is, delete the
signature but leave the empty signature field). As with other edits you make to a signed
document, this adds another version to the document without altering earlier versions.
Another user can roll back to an earlier version to see the original signature.
To remove a signature or clear a signature field:
1
Do one of the following: