使用C＃和免费的第三方组件签署PDF？

Question

is there a reliable way to sign PDFs from a commercial ASP.NET (C#) application? The component should be free to use. I saw iText, but its not free for commercial use.

Thanks

Answer 1

You can use ITextSharp as long as you use version 4.1.6 or older. Unfortunately, they have removed it from sourceforge but you can download it (with a sample application) at http://www.4guysfromrolla.com/articles/030911-1.aspx .

I have been using it for filling pdf forms and it works like a charm :-).

Answer 2

尝试使用PDF Sharp： http ： //www.pdfsharp.net/ 。