Aspose.Words for .NET and Java 13.10.0 as well as Aspose.Words for Android 1.3.0 integrated an overhaul of our existing HTML engine which adds better support for CSS features and improves overall performance when working with HTML based documents. As you may know HTML documents differs greatly from traditional Word documents so it takes a detailed underlying engine to convert between the two formats with high fidelity, and while our old engine dealt well with many HTML documents there was room for improvement. Aspose.Words now supports rendering documents to PDF with PDF/A-1a compliance level. This compliance encompasses all of the requirements of PDF/A-1b which Aspose.Words already supports and ensures the document can be searched and repurposed. With this compliance document features are also exported to the logical structure contained in the document. Check out our documentation which demonstrates How to convert any supported document to PDF with just two lines of code.