1. It's not possible to set security policies in InDesign.
2. In InDesign, it will always be manual.
3. In Acrobat Pro, you can do it by setting a securty policy.
Assuming you're using Acrobat X Pro, here are the steps:
a. Choose Tools > Protection > Encrypt > Manage
b. Click New to open the New Security Policy dialog box.
c. Select Use Passwords, and click Next.
d. Enter the name and description for the policy, and specify whether you want to save a password with it. Click Next
e. Specify encryption and permission settings and click OK. Click Next and click Finish.
It's not something I knew about until I had to teach an Acrobat class a month or two ago where Security is one of the topics. I had never had to use it before.
Thanks for your notes. To follow up on your response.
- Bummer. I kinda had a hunch at this inDesign limitation.
- I have been aware of the method for setting up of a security policy within Acrobat. While this feature does cut down some of the work involved in creating and applying password policies to pdfs, what I am looking for with Acrobat is to apply the same password policy to every document I save from the app. Automatically. Without having to manualy select a policy.
I think my solution will have to lie in me creating some sort of script to help support this need. I don't think Acrobat Pro X has the capabilities to allow me to tinker with, say, creating a save PDF preset that will allow me to automatically apply a password policy.
PS. I am using acrobat pro x.
Just a guess, but I notice that setting security policies is NOT one of the features you can select when creating an action in the Action Wizard in Acrobat X Pro.
The Adobe Acrobat team has had to be extremely security conscious with PDF and Acrobat/Reader because there are lots of bad guys who would love to exploit the products. I doubt that things relative to security would be scriptable. Don't know, but just a guess. You could ask on the Acrobat forums in that area.