谢谢了。 一定要能判别页面的方向。 单纯的如“A4”不能完全满足要求。 因为我需要在PDF文档4个角上放标志。 To coldanimal, 谢谢，已经好使了。
再请教一下，iText是免费的吗？ 最后一个问题： iText是免费的吗？
In the end of 2009, iText version 5 is released under Affero GPL license. This license is drastically different from the previous license that iText had been distributed under, in that it requires anyone using iText 5 under a free license to provide the users with the full source of their application. Projects that do not want to provide their source code are required to purchase a commercial license for a non-disclosed price or they cannot upgrade to iText 5. (Projects can continue using previous versions of iText under the more liberal license without any changes.)
