Hello, I have a problem with calculated fields on a pdf.

Seems like calculated fields don’t work after I manipulate an existing pdf (pumping data into fields) and merging documents together.

Ex: gross weight = units * net weight (this works fine if I open the pdf directly in pdf reader but not when I used Itext library to generate the pdf on the fly and send it to a browser).

Any help would be greatly appreciated.

Regards,

Prabhakar