chessPDFBrowser
Chess application whichs allows working with chess PDF books and PGNs.
...pdf2pgn command line command included.
Detailed documentation.
Multilanguage currently support for English, Spanish and Catalan.
Dark mode option.
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