Form field properties are literally everything. This article covers the basics by dissecting a simple calculation scriptĮditing Form Field Properties - When it comes to designing a form.
How to Write a Basic PDF Calculation Script - Everything you need to know to get started writing PDF form calculation scripts, from where to find the button in the Acrobat Pro UI, to details on the how the scripts work. Learning how to write an 'if' is one of the most basic steps to developing programming skills. How to Write an 'If' Statement - The 'if' statement in the JavaScript language is one of the most basic and useful control structures. There are however more significant compatibility issues you should know about. As such, nearly everything you'll find on this site is compatible with Acrobat 7 thru Acrobat DC. Of the changes that were made, most changed scripting access and security, not functionality.
Little to no changes have been made to this model in following versions. A Note on JavaScript Compatibility - The Acrobat JavaScript model grew very quickly up to version 7.