Part of this feature is the release of the repo https://github.com/itext/itext-eu-trusted-lists-resources https://github.com/itext/itext-eu-trusted-lists-resour

Part of this feature is the release of the repo https://github.com/itext/itext-eu-trusted-lists-resources https://github.com/itext/itext-eu-trusted-lists-resources which contains the trusted European certificates and is maintained and kept up to date by the iText development team. It's free and MIT licensed so go use it if you need it!