Openhtmltopdf
· Open-HTML-to-PDF is a HTML and CSS renderer written in Java. It supports Java2D and PDF output. Open-HTML-to-PDF is a fork of Flying-saucer with additional features.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window openhtmltopdf-parent-1.1.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
