Executes arbitrary ExtendScript (Illustrator's JS-based scripting language, roughly ES3) inside the running Illustrator instance. Use this for anything the other tools don't cover directly. The value of the last expression in the script is returned as a string (end your script with a bare expression, e.g. a string, to return a result). Illustrator object model docs: app, app.documents, app.activeDocument, PathItem, TextFrame, RGBColor, etc.

Connects to Illustrator (launching it if needed) and reports its version plus a summary of currently open documents.

Creates a new, blank Illustrator document with the given artboard size (in points; 72pt = 1in) and makes it the active document.

Opens a file (.ai, .eps, .pdf, .svg) from disk and makes it the active document.

Saves the active document in place, or as a new .ai file if path is given (Save As).

Exports the active document to PNG, JPEG, PDF or SVG at the given path.

Draws a filled/stroked rectangle on the active layer of the active document. Coordinates are in points from the top-left of the artboard.

Draws a filled/stroked ellipse on the active layer of the active document. Coordinates are in points from the top-left of the artboard.

Adds a point-text frame with the given content, position, font size and color to the active document.

Reports the active document's name, path, size, artboard count and layer names.