Calibre

Calibre 3.39.1

Calibre is a free and open source e-book library management application developed by users of e-books for users of e-books.

Freeware
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Windows/macOS/Linux
60.7 MB
43,071
4.5 17 votes

It has a cornucopia of features divided into the following main categories:

  • Library Management
  • E-book conversion
  • Syncing to e-book reader devices
  • Downloading news from the web and converting it into e-book form
  • Comprehensive e-book viewer
  • Content server for online access to your book collection

What's New:

New features

  • Content server: Implement the "Copy to library" function. To use it click the three dots in the top right corner of a book's page and choose "Copy to library"
  • Content server: Add Next/Previous buttons to the book details page

Bug fixes

  • Content server: Fix editing metadata that affects multiple books causing all the metadata for all the books to become the same. Closes tickets: 1812781
  • Open With: Fix using .bat files as the program not working. Closes tickets: 1811045
  • ZIP Output: Fix an error when building the ToC on macOS for some books with non-ASCII ToC entries. Closes tickets: 1813905
  • Edit book: Check book: Follow recent releases of epubcheck in expecting .ttf files to have the mime-type application/vnd.ms-opentype in EPUB 3 books
  • Fix font mime-types not being auto-corrected when upgrading EPUBs from 2 to 3
  • Content server: Try to detect if a book file has been edited outside of calibre and serve the updated copy
  • Fix merging books not updating author if the source book has no title
  • Content server: Fix heading for custom comments columns being duplicated in the book details page
  • Fix editing of dates not working is the date format is set to iso. Closes tickets: 1812560

New news sources

  • BSI News by Volker Heggemann
  • Science Advances by Jose Ortiz

Improved news sources

  • Spiegel Online
  • Il Post

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