IText is a class library that can quickly generate and manipulate PDF files. The main functions include: PDF file creation, document segmentation, document merging, graphic operation, automatic filling PDF form (acroforms, static and dynamic XFA form), PDF file Add digital signature, generate dynamic file from XML file or database, add bookmark, page number, watermark, etc.
IText 5.2.0 A large part of this version involves parsing in PDF format. Added special coding and support for foreign languages. It corrects parsing errors so that when reading a PDF format is not valid, itext is more tolerant. In addition, Itext is now able to generate http://www.aliyun.com/zixun/aggregation/16864.html ">pdf documents larger than 2 GB." This version populates some gaps about implementing pades and reducing reliance on java.awt to ease the use of Itext in Google Android and Gae.
Software Information: http://itextpdf.com/
Download Address: http://sourceforge.net/projects/itext/files/iText/