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ABBYY® FineReader PDF User’s Guide
This will add a digital signature with the specified parameters to the document.
A signature contains information about the version of the document at the time of signing. If you add
a new signature to an already signed document, the previously added signatures will remain valid.
To view the properties of a signature in a document:
· Right-click the signature and click Show Signature Properties... on the shortcut menu, or
· Double-click the signature in the Digital Signatures pane.
When you open a PDF document, ABBYY FineReader automatically validates the digital signatures in
the document, if any. Validation results will be displayed in the Digital Signatures pane, which also
contains detailed information about the signatures used in the document.
To delete a signature:
· Right-click the signature and click Remove Signature on the shortcut menu.
You can only delete a signature from a document if you have the corresponding digital certificate.
You can add more than one digital signature to a document.
Time Stamp Server Settings
The use of timestamps decreases the possibility of a signature being invalid. Marking a PDF document
with a timestamp requires a connection to a timestamp server. To set up a timestamp server
connection, click Set up Time Stamp Server and specify one of the following server options in the
dialog box that will appear:
· Default to use the default timestamp server.
· Custom to specify the URL of a custom timestamp server. If credentials are required to establish a
connection to that server, enter your login and password and click OK.
Your login and password will be encrypted and saved on your computer in a Windows storage
called Windows Credentials (Credential Manager > Windows Credentials). You will not be
required to enter your credentials when connecting to the server a second time.
This will specify the timestamp server time at which the document was signed after the document
signature.