iText is a PDF library, an API that was developed to allow developers to do the following (and much more):
iText is not an end-user tool. You have to build iText into your own applications so that you can automate the PDF creation and manipulation process. Compliant with PDF/A Level A and PDF/UA, supports PAdES signatures, meets the ZUGFeRD requirements.
Produced by iText BVBA
iText 7 Core is a PDF library that you can build into your own applications. It will allow developers to:
PDF interest area(s):PDF 2.0 PDF/A PDF/UA
Feature(s):Tagged PDF Annotate Assemble Compress Create Modify page content Reuse Sign Stamp
Product sector:Accessibility Archiving Collaboration Consumer Document Management System (DMS) Electronic invoicing Forms Output Security Workflow management Information technology