The function library package with the modules (dll) PDFinternals, PDFdocuments, PDFlayout and PDFsecurity for your own (batch-)application. Here bundled for a lower price! You can use the dlls with your commercial applications without paying any further fees - It's royalty free! The dlls are tested with delphi and vba/visual basic... but there should be no problems with any other main programming language, too. Read more on the product pages.