I have written a small shell script which can copy the metadata from Calibre to PDF files:
https://github.com/aboettger/ShellSc...ata_by_calibre
You can call it directly from a terminal. As a parameter a path is expected. This path and all subdirectories are searched.:
Code:
update_pdf_metadata_by_calibre [path_to_calibre_library]
Likewise can be called via Calibre. Look at the image for details.