CEPs JavaScript can pass to ExtendScript only String. In your code, ExtendScript can't resolve "this". Additionally, input tag can't get the path. However, we can use showOpenDialog() in CEPEngine extension. You can reference below CEP-Resources/CEPEngine_extensions.js at master · Adobe-CEP/CEP-Resources · GitHub p.s. EB3 already stop to develop and this forum will freeze. However, we have new Extensions and developers forum. Extensions / Add-ons Development
... View more