I have imported a large pdf library into Calibre, but for many of the files the correct meta-tag doesn't show. I have spent a long time getting the correct meta-tags for all the files (in the program Papers, where they show correctly). Does anyone know if Papers save the meta-tags in the specific files or in the library file? And does anyone know if there is a workaround so I won't have to find all the correct meta-tags again? This would be a big help!