[nqk]

I sideloaded books using "Send to Device" button, nothing fancy, just let Calibre convert them to azw3 on the fly. However, later, when I did certain modification (spelling corrections, certain polishing, etc.) to the azw3 files with Calibre and plug the Paperwhite again, would Calibre ask me to send the updated files to the device?

I did make some research but "sync Calibre to Kindle" doesn't return something I could use.