Dynamically batch change document properties

[ChrisBerrisford]

How can I batch change document properties (i.e. initial view -> navigation tab) dependant on whether the pdf has a bookmark or not?
Javascript seems perfect for this, but apparently document properties cannot be changed with Javascript.

[try67]

No, they can't be edited using JS. You can add a script to the file that changes the view setting when the file is opened, but you can't change the actual Initial View options with it.

[ChrisBerrisford]

Thank-you @try67.

I am able to run an action with the Action Wizard in Pro DC to do this, however this sets the properties regardless of whether there's a bookmark or not.

Does this action effectively add a script to the file? Or is this done some other way?

Thanks,

[try67 · Accepted solution]

Only JS can work with conditions.

And no, that action doesn't use JS to make those changes. It changes the file directly.