MobileRead Forums - View Single Post - adding mass metadata to epub files from json?

jcd1013 · 08-09-2020, 06:19 PM

Hello!

I recently inherited thousands of epub files (just under 10K) from a fanfiction site has now closed down and added them all to a new calibre library today. I only noticed afterwards that the epubs have no metadata attached to them and that there's a json file in the folder which contains all of the metadata.

How do I merge the metadata.json with the epubs? The thought of adding it back by hand makes me want to gnash teeth.

I use a Mac, OS 10.15.5, so if I do need an additional program, it would be helpful if it is Mac based.

08-09-2020, 06:19 PM	#1
jcd1013 Junior Member Posts: 4 Karma: 10 Join Date: Jan 2011 Device: Kindle for iPod	adding mass metadata to epub files from json? Hello! I recently inherited thousands of epub files (just under 10K) from a fanfiction site has now closed down and added them all to a new calibre library today. I only noticed afterwards that the epubs have no metadata attached to them and that there's a json file in the folder which contains all of the metadata. How do I merge the metadata.json with the epubs? The thought of adding it back by hand makes me want to gnash teeth. I use a Mac, OS 10.15.5, so if I do need an additional program, it would be helpful if it is Mac based.