So, after reading where you sent me, and some other rabbit trails:
ExtendScript is the additional scripting available via some application/program.
SDK Toolkit is an editor and other resources for working with all the above.
I think I get it.
Another thing I picked up on is something I have been clueless about. And it will be a hassle to heed, but I will endeavor to do so. That is, as I implement scripting, I need to cognizant of my "target audience" -- the version of Acrobat or Reader they would be using; since some code was not released early enough and might not be compatible with early versions of these apps.
So, anyway, I think you're answer got me where I need to be. Thank you!
The API documentation does list differences between what's available in Adobe Acrobat vs. the free Reader. So whenever you use one of these methods or properties, you want to make sure that you understand what the implications are with running your application in the free Reader.
Excellent. I figured it would take some extensive text entry, as in the your last couple posts here, to explain all this.
I'm sure I get it now!
Thanks for doing that!
In no time, I'll be up to knowing enough to be dangerous!