问题
how can i add Acroforms (or any inputfields) with pdfsharp lib to a pdf? For example a textbox (PdfSharp::Pdf::AcroForms::PdfTextField) I can't find any example for this, only read/modify.
I found "page->Elements->Add(key,pdfitem)", but i cant create a Object from PdfSharp::Pdf::AcroForms::PdfTextField or the others Forms (no Constructor)
来源：https://stackoverflow.com/questions/25222759/add-acroform-with-pdfsharp