| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Foxit\PhantomPDF 8.0\Ribbon\Ribbon_Category_Protect\Protect_Panel_Signature |
| Value Name | Validate All Signatures |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |