How to flatten already filled out PDF form using iTextSharp

Question

I\'m using iTextSharp to merge a number of pdf files together into a single file.

I\'m using method described in iTextSharp official tutorials, specifically here, wh

Answer 1

I think this problem is same with this one: AcroForm values missing after flattening

Based on the answer, this should do the trick:

pdfStamper.FormFlattening = true;
pdfStamper.AcroFields.GenerateAppearances = true;