Chess application whichs allows working with chess PDF books and PGNs.
...JDK-17 compatibility
You will find more about it at this web sites:
https://chesspdfbrowser.com?origin=sourceforge
https://www.frojasg1.com:8443/downloads_web/web/html/chessPdfBrowser.html?origin=sourceforge
Easy Tools of PDF, Image, File, Network, Data, and Medias
javafx-desktop-apps pdf image ocr icc barcode color-palette text bytes markdown html archive compress digest video audio editor converter media
https://github.com/Mararsh/MyBox
Self-contain packages need not java env nor installation. Jar packages need Java 16 or higher.