Adobe ACROBAT 3D Manual page 651

Adding security to preflight profiles
You can prevent unauthorized changes to preflight profiles by locking profiles and giving
them passwords. This may be useful if preflight profiles are shared among several users.
You can lock preflight profiles when you first create them or any time you save the
preflight profiles. A locked preflight profile requires a password to unlock it for
modification. By default, a new preflight profile is not locked.
To lock a preflight profile:
1. In the Edit Profile dialog box, select a profile.
2. Specify profile settings, and then select Protect Profile With Password.
3. Enter uppercase and lowercase letters, numerals, or punctuation marks. Reenter the
password in the next box to confirm it.
The options become unavailable, and the Locked/Unlocked pop-up menu at the bottom
left of the Edit Profile dialog box changes to Locked.