I'm looking for a way to do a very specific task in Calibre but maybe it's not the right software.

I know there are plugins/functionality to automatically collect metadata for existing ebooks and to get information for fields such as Author, Title, Year of publication, Tags, all based on information taken from the file's name.

Is there a plugin/way for Calibre to scrape a bit of the book and try to match it's contents with some book through some search engine? Basically I want it to automatically scrape metadata without being constrained to the file name.

  • 1
    calibre reads all this metadata from the book - what extra are you after
    – mmmmmm
    Aug 22, 2015 at 14:16
  • @Mark I want something a bit more complex such as taking excerpts from the ebook's text and trying to match it with known books or like trying to search the book for an ISBN value and then searching for the metadata related to that ISBN
    – besnico
    Aug 24, 2015 at 20:34
  • The ISBM of the book should be in the metadata so no need to search
    – mmmmmm
    Aug 24, 2015 at 20:42
  • @Mark most of them don't, hence the necessity
    – besnico
    Aug 24, 2015 at 22:31
  • @Mark You seem not to have actually looked inside many epubs of older books. Heck, most of my pre-1990 dead tree books don't have ISBNs in them (book club editions), but very few epubs that have been made from back catalogs, and of course standards-wise a huge number of modern self-published ebooks are laughable. There could be any number of reasons why the full metadata isn't available.
    – Auspex
    Feb 29, 2016 at 15:36

1 Answer 1


Yes, a calibre plugin could do that. Does one? Not that I know of!

You could look at the Extract ISBN plugin (http://www.mobileread.com/forums/showthread.php?t=126727) for an example of pulling data out of the ePub, and any of the metadata search plugins for how to then use the information you've found in a web search.

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