To start with the iText 7 library, we should learn first how to generate a PDF containing simple text.
Therefore, the code has changed only minimally, although there are some notable differences. The library in version 7 is not so different from the previous versions. You can see the evolution of the library (the collection of components) in the image below. Besides that, the library is constantly adding new features. The iText 7 is quite a matured library in its 4th edition (see versions 1, 2, 5, and 7). Note: I have to admit their support is excellent and they never let me down. However, a commercial license is needed for usage in any commercial project. That means the library is free to use in open source projects. The library has been using the AGPL license model since iText 5. In addition to this, they can benefit from our rich and up-to-date technical documentation in the Resource Center. At the same time your development team has full access to all internal PDF structures, offering them the possibility to read, insert, update and delete any PDF object they want. With iText 7 Core you don't have to worry about PDF technologies and standards, you can just focus on your business needs and document content. IText 7 Core is a straightforward, performant and extensible library that is ready to handle the challenges of today's digital document workflows. See some definitions from the iText site. The library is a collection of several components, but the primary concern of this article is the IText Core component. It can be used to create static or dynamic PDFs and manipulate already existing PDFs with minimum concern for the PDF standards. The iText library can be used to manipulate almost any PDF. To start, I'll begin with a short overview of the library to provide readers with a better understanding of the concept. This will be followed by examples of styling texts or paragraphs. I will provide an example of how to generate a PDF using the library and some methods for testing PDF content.
In this article, I will introduce the latest version of the iText 7 library.
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