apache/xmlgraphics-fop

XML/XHTML and CSS 2.1 renderer in pure Java

📃 Asciidoctor PDF: A native PDF converter for AsciiDoc based on Asciidoctor and Prawn, written entirely in Ruby.

pdfHTML is an iText add-on for Java that allows you to easily convert HTML and CSS into standards compliant PDFs that are accessible, searchable and usable for indexing.

Forme is a document engine for JavaScript, written in Rust and compiled to WASM. Render the HTML and print CSS you already have, or author React, Svelte, Vue, and Preact components. Paginated PDFs in-process - no headless browser.

The awesome document factory

OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

The SILE Typesetter — Simon’s Improved Layout Engine

XDocReport means XML Document reporting. It's Java API to merge XML document created with MS Office (docx) or OpenOffice (odt), LibreOffice (odt) with a Java model to generate report and convert it if you need to another format (PDF, XHTML...).