I need to secure my document and allow comments and "stamps" to be added to it. What settings do I use?

[crsube55]

How do I secure my document and still allow comments and "stamps" to be added to it?

[crsube55]

Sorry first time posting, it looked like it was asking for more input.

[try67]

In the Password Security dialog, under "Changes Allowed" select either the options that starts with "Commenting, filling in form fields...", or the last one, "Any except extracting pages".