Dump variables report (using JSON)
Beginning with pdfToolbox 10, a new report type is available on command line (and in Switch):
VARDUMP: Dumps the app.vars obbject into JSON
This report dumps all variables and their values in a JSON file. The other report options can be used e.g. in order to specify the location and the name with which the JSON report is created.
The JSON file contains a "vars" object and key value pairs for all variables.