Calibre 5.18



Calibre is an open source e-book library management application that enables you to manage your e-book collection, convert e-books between different formats, synchronize with popular e-book reader devices, and read your e-books with the included viewer.

It acts as an e-library and also allows for format conversion, news feeds to e-book conversion, as well as e-book reader sync features and an integrated e-book viewer.

Calibre’s features include: library management; format conversion (all major ebook formats); syncing to e-book reader devices; fetching news from the Web and converting it into ebook form; viewing many different e-book formats, giving you access to your book collection over the internet using just a browser.

Calibre 5.18.0 new features:

  • Content server viewer: Improved search functionality Searching can now be done for whole words and regular expressions. And all search results are listed at once with some context for easy navigation.
  • E-book viewer: Allow fullscreening the image popup. Closes tickets: 1928596
  • E-book viewer: Allow expanding/collapsing all items in the Table of Contents at a particular level by right clicking on one item of that level and choosing the option to expand/collapse
  • E-book viewer: Add shortcuts shift+home and shift+end to extend current selection to start/end of line
  • Book details: When creating rules to convert identifiers to URLs allow using {id_unquoted} to avoid quoting the identifier value. Closes tickets: 1927520
  • Review downloaded metadata: Allow double clicking on a cover to see it at a larger size. Closes tickets: 1927062
  • Annotations browser: Add a Refresh button. Closes tickets: 1927012

Bug fixes

  • Edit book: Fix ctrl-clicking on a class name jumping to the wrong CSS rule if the stylesheet contains top level comments

  • Fix search and replace on identifiers not working if the replaced value has colons. Closes tickets: 1928579

  • Annotations browser: Sort the entries in order of position in book. Closes tickets: 1922691

  • ToC editor: Dark mode: Fix colors in location selection panel not dark

  • E-book viewer: Fix right or shift-clicking to extend selection not shrinking selection when the click is inside the selection. Closes tickets: 1926793

  • Avoid spurious errors on multiple simultaneous calibre launches. Closes tickets: 1927546

  • E-book viewer: Ignore mouse scroll events that would turn pages when editing notes. Closes tickets: 1925961

  • E-book viewer: Fix sorting bookmarks by title not working

  • Windows WPD driver: Fix an error reading the filesystem on some MTP based devices

Improved news sources

  • IEEE Spectrum

Download: Calibre 5.18.0 for Windows | Portable | Windows 64-bit | ~100.0 MB (Open Source)
Download: Calibre 5.18.0 for MacOS | 142.0 MB
Download: Calibre 5.18.0 for Linux
View: Calibre Home Page | Calibre Screenshot

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