Certificate security

Use certificates to encrypt documents and to verify a digital signature. A digital signature assures recipients that the document came from you. Encryption ensures that only the intended recipient can view the contents. A certificate stores the public key component of a digital ID.

When you secure a PDF using a certificate, you specify the recipients and define the file access level for each recipient or group. For example, you can allow one group to sign and fill forms and allow another to edit text or remove pages. You can choose certificates from your list of trusted identities, from files on disk, from an LDAP server, or from the Windows certificate store (Windows only). Always include your own certificate in the recipient list so that you are later able to open the document.