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Timestamps appear in the signature field and in the Signature Properties dialog box. If a timestamp server is
configured, that timestamp appears in the Date/Time tab of the Signature Properties dialog box. If no timestamp
server is configured, the signatures field displays the local time of the computer at the moment of signing.
Configure a timestamp server
To configure a timestamp server, you need the server name and URL or a Forms Data Format (FDF) file that contains
the server settings.
Choose Advanced > Security Settings.
1
Select Time Stamp Servers on the left.
2
3
Do one of the following:
• If you have an FDF file with the timestamp server settings, click the Import button
click Open.
• If you have a URL for the timestamp server, click the New button
Specify whether the server requires a user name and password, and then click OK.
Set a timestamp server as the default
If you have two or more timestamp servers configured, you can set one of them as the default.
Note: Before you set a timestamp server as the default, you may want to check if the timestamp authorities charge a usage fee.
Choose Advanced > Security Settings.
1
2
Select the timestamp server, and click the Set Default button
Click OK to confirm your selection.
3
About graphics tablet signatures
You can sign PDFs using graphics tablets and other input devices by using third-party software. Digital signature
providers, such as Silanis and the Communication Intelligence Corporation (CIC), provide this capability in an
Acrobat supported plug-in. These plug-ins may limit your access of certain encryption features in Acrobat. For more
information about third-party providers, visit the Adobe website.
Signing PDFs
Before you sign a PDF
You can expedite the signing process and optimize your results by making the following preparations in advance:
• Obtain a digital ID, or create a self-signed digital ID in Acrobat.
Note: You cannot create self-signed digital IDs from within FIPS mode.
• Set the default signing method.
• Create an appearance for your digital signature.
• Use Preview Document mode to suppress any dynamic content that may alter the appearance of the document
and mislead you into signing something you shouldn't.
. Type a name and then type the server URL.
.
ADOBE ACROBAT 3D VERSION 8
User Guide
. Select the FDF file, and
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