How to keep metadata when heif2jpg using nconvert/xnconvert

[xnaha2026]

xnconvert and xnview is good tool, i used a lot,
but when i convert heic image to jpg file, xnconvert and xnview can keep all metadata in dest file,
but command line tool nconvert lost all metadata(exif, iptc..), how can i keep metadata when using nconvert,
i need handle a lot of photos , prefered using command line tool in my script,

thanks.

[xnview]

Which command do you use?