No, it already exists as pdf, a single page pdf with a technical drawing that I need to add some text and barcode to, so that it can be printed and used in mechanical production. (BTW I am using ZXing for the barcode and it works perfectly with jsreport)

I have tried the watermark sample, but it uses an html template, while I need to add the watermark to an existing PDF.
Thank you

Hello, is it possible to add content (text, image) to an existing pdf? Sort of a watermark...
Thank you!