: Calibre supports searching the entire content of your books, not just the metadata. Click the "FT" button on the left of the search bar to enable or use the full-text search interface.
: While standard fields are easy to bulk edit, long text fields (like Comments) can be trickier. You may need to use Regex (Regular Expressions) within the bulk metadata edit dialog to find and replace specific formatting or repeated text across many books. Calibre
: You can make these fields visible in the main book details pane by navigating to Preferences > Look & Feel > Book details and checking your new column. : Calibre supports searching the entire content of
Managing "long text" in typically refers to adding custom metadata fields for detailed notes, chapter descriptions, or extended commentary that doesn't fit in standard fields like "Title" or "Tags." Creating "Long Text" Custom Columns You may need to use Regex (Regular Expressions)
: If you need to extract all text from a book into a single long file, it is often easier to convert the book to .txt or .rtf format first rather than trying to "select all" in the viewer.