Some PDF files may contain restrictions preventing actions such as printing, editing, copying, etc. To check if you have these permissions, go to File > Properties > Security, or Protect > Secure Document > Security Properties.

The Optional Database Connectivity plug-in is a JavaScript object inside Foxit PDF Editor, allowing you to connect to Windows ODBC (Open Database Connectivity) data sources.

You can use the built-in JavaScript editor in Foxit PDF Editor (or an external JavaScript editor if you have specified one in File > Preferences > JavaScript) to create and edit all the JavaScripts in a PDF file.

JavaScript Console is a control panel for the execution and debugging of JavaScript code. Serving as a debugging aid, it is quite useful for displaying debug messages and executing JavaScript.

You can create the document-level JavaScript actions that apply to the entire document. For example, selecting Document Did Save runs the JavaScript after a document is saved.

Document JavaScripts are variable and function definitions that are generally useful to a given document, but are not applicable outside the document.

JavaScript is a dynamic, prototype-based language with first-class functions, which serves as a means to easily create interactive web pages. In Foxit PDF Editor, you can easily integrate this level of interactivity into your PDF documents.

Foxit PDF Editor supports editing static XFA forms. To edit a static XFA form, open it with Foxit PDF Editor and choose Form > Edit Static XFA Form.

When you define two or more calculations in a form, the order in which they are carried out is the order in which you set the calculations. In some cases, you may need to modify the calculation order to obtain correct results.

Page templates can be used to fill a PDF form where users need to add more pages if they still have info to enter. This section explains how to manage page templates in Foxit PDF Editor.