[BetterRed]

Originally Posted by shape

I tried using Save to Disk and all the saved files still truncate. And not by just a few characters but by several lines that macOS allows me to add manually to the filename. Is there a setting that is causing it to truncate?

The “Automatically convert added books...” option in “Add Books” -> "Control the adding of books" -> "Adding actions" works so well that it's a shame not to be able to use this and also be able to control the filename output.

See ==>> Save to disk

You can control the file name and folder structure of files saved to disk by setting up a template in Preferences → Import/export → Saving books to disk. Also see The calibre template language

BR