我有一个使用iTextSharp的库生成PDF旧项目。 iTextSharp的DLL被加入作为参考项目。 iTextSharp的最初是基于LGPL协议。前段时间许可证已更改为AGPL（在发布5.0.0），该副本左边，这样你不得不GPL所有code，如果你使用它。

I have an old project that is using iTextSharp library for PDF generation. iTextSharp DLL is added as reference to the project. iTextSharp was originally available under the LGPL licence. Some time ago the licence has changed to be AGPL (in release 5.0.0) that is copy left so you'd have to GPL all your code if you used it.

我的问题是，我不知道什么时候我下载的是在我的项目链接DLL文件。我不知道如果DLL仍在LGPL或已经是AGPL下。而这将意味着我必须GPL我的项目。

My problem is that I don't know when I downloaded the DLL file that is linked in my project. I don't know if the DLL is still under LGPL or it is already under AGPL. And that would mean that I have to GPL my project.

有没有什么办法来检查什么是iTextSharp的版本，当你只有该DLL？或什么是它的许可证？

Is there any way to check what is the version of iTextSharp when you have only the DLL? Or what is the licence of it?

或者是有任何地方，我可以下载旧版本的iTextSharp的那仍在LGPL，所以我一定会，我不是赚不到我的项目打破GPL许可证？

Or is there any place where I can download old version of iTextSharp that is still under LGPL so I'll be sure I'm not breaking the licence by not making my project GPL?

推荐答案

好像从SourceForge删除iTextSharp的4.1.6 iTextSharp的维护者，反正你可以尝试简单的谷歌itextsharp-4.1.6.zip寻找替代下载来源

seems like iTextSharp maintainers removed iTextSharp 4.1.6 from SourceForge, anyway you can try to simply Google for "itextsharp-4.1.6.zip" to find alternative download sources

编辑：这里是链接的4.1.6 DLL：http://pdfviewernet.google$c$c.com/svn-history/r55/trunk/PDFView/PDFView/lib/itextsharp.dll

here is the link for 4.1.6 dll: http://pdfviewernet.googlecode.com/svn-history/r55/trunk/PDFView/PDFView/lib/itextsharp.dll