We’re pleased to announce the release of iText Suite 9.3, with some great updates to our PDF SDK. This release focuses on enhancing our digital signature validation capabilities, better OCR with support for AI/ML-based recognition, and hugely improved font subsetting, along with improved performance across the suite.

With the enforcement of the European Accessibility Act (EAA) in June 2025, it’s imperative to ensure PDFs and other digital documents are accessible to those with disabilities. In this article, we look at overcoming the obstacles to accessible, EAA-compliant PDFs with iText, using its new high-level APIs for PDF/UA creation and automated validation.

This release of iText by Apryse introduces support for .NET MAUI AOT compilation, automated PDF/UA-2 validation during document creation, and general improvements for PDF/UA creation and conversion from HTML. There's also enhancements to PDF optimization and advanced typography features, and much more.

On 14th February 2000 the first public version of the iText PDF library was released to the open-source community. A quarter of a century later, Apryse is proudly celebrating with the release of iText Suite 9.1 on iText’s 25th anniversary, which is also Valentine’s Day! This release brings significantly expanded SVG and CSS support, huge performance increases, GraalVM for pdfHTML, and a whole lot of love!

With the onset of e-invoicing legislation coming into effect across Europe, there is renewed interest in the ZUGFeRD/Factur-X hybrid invoice standard. This article examines how the standard has evolved, and how you can use the dual-licensed iText Core library to easily create ZUGFeRD-compatible files to comply with EN 16931 requirements.

iText Suite version 9.0 introduces a brand-new major version of the iText Core library, and updated Core add-ons. We've finalized the dedicated PDF digital signature validation module, and added support for the ISO/TS 32003 and 32004 standards. Not only that, but we also have new and improved APIs and much, much more.

PDF generation from HTML templates is a common iText use case and is especially useful for the creation of documents which must conform to the PDF/A and PDF/UA standards for archiving and accessibility. This article compares how you would create PDF/A documents with iText 5, and the improved methods available in iText version 8 with the pdfHTML add-on.

The ability to apply and validate secure PDF digital signatures has long been a particular strength of the open-source iText Core library. We’ve kept pace with advances such as support for PAdES and PDF 2.0, and so we’re proud to present a guest blog detailing iText 8’s support for the latest ISO extension standards for digital signing.

If you’ve ever encountered this error when opening or validating a PDF with iText 5 and earlier versions, then this article is for you! We’ll explore what this error message means, the reasons why you might encounter it, and the ways you can resolve it.