Adobe Acrobat 8 3D - Manual (Page 261)

254 ADOBE ACROBAT 3D VERSION 8
User Guide
Register a digital ID
You must register your digital ID in Acrobat before you can use it. If you obtained or created a digital ID file that
doesn’t appear in your list of digital IDs, you can search for the missing digital ID file and add it to the list. You can
identify digital ID files by their file extensions. For PKCS #12 files, the extension is .pfx in Windows and .p12 in Mac
OS. Digital ID files from some earlier versions of Acrobat have an .apf extension. If you select an .apf digital ID file,
you may be prompted to convert it to a supported file type. You may need the password created for the digital ID to
complete this task.
1 Choose Advanced > Security Settings.
2 Select Digital IDs on the left.
3 Click the Add ID button .
4 Select one of the following options:
Browse For An Existing Digital ID File Select this option if you obtained a digital ID as an electronic file or if you store
it in the Windows certificate store. Follow the prompts to select the digital ID file, type your password, and add the
digital ID to the list.
Configure A Roaming ID For Use On This Computer Select this option to use a digital ID that’s stored on a signing
server. When prompted, type the server name and URL where the roaming ID is located.
Create A Self-signed Digital ID For Use With Acrobat Select this option to create a self-signed digital ID.
Look For Newly Inserted Hardware Tokens Select this option if you have a security token or hardware token
connected to your computer.
5 Click Next, and follow the on-screen instructions to register your digital ID.
Create a self-signed digital ID
If you’re not using a third-party digital ID, you can create your own self-signed digital ID. When you create a self-
signed digital ID, the resulting file stores an encrypted private key used for signing or decrypting documents and a
public key contained in a certificate, which is used for validating signatures and encrypting documents.
1 Choose Advanced > Security Settings.
2 Select Digital IDs on the left, and then click the Add ID button .
3 Select Create A Self-Signed Digital ID For Use With Acrobat, and click Next.
4 Specify where to store the digital ID, and click Next.
New PKCS#12 Digital ID File Stores the information in a file that you can send to others. This is a standard
encryption format with a .pfx extension in Windows and .p12 in Mac OS.
Windows Certificate Store (Windows only) Stores the file where other Windows applications can also retrieve it.
5 Type a name, email address, and other personal information for your digital ID. When you certify or sign a
document, the name appears in the Signatures panel and in the signature field.
6 (Optional) To use Unicode values for extended characters, select Enable Unicode Support, and then specify
Unicode values in the appropriate boxes.
7 Choose an option from the Key Algorithm menu. 2048-bit RSA offers more security than 1024-bit RSA, but 1024­
bit RSA is more universally compatible.
8 From the Use Digital ID For menu, choose whether you want to use the digital ID for signatures, data encryption,
or both. Click Next.