Hi, bro!
I have ever finished PDF writing with iText with c#, vb.net, python
So there is no problem with java also
I have read your requirement and I noticed that I am appropriate to this project.
As a skillful software developer, I have rich experience with C/C++, Java, Python and built many projects like this.
I promise I will finish this project with high quality on time.
I hope you to contact me so that we have a full discuss with the project.
Best regard!