Hi thanks for your reply, actually I can't try the examples you give to me. I'm trying to merge the PDFs in a node web service, where the jsreport is runing on another service and the client is called like this:
const client = require('jsreport-client')('http://Localhost:5488', "", "");So I'm stuck because i don't know how to import or call pdf-utils on my nodejs web service to use methods like .append()