Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital librarian.

Manage, convert, sync, and more

• Library management. Calibre keeps things orderly by creating single entries for books that contains multiple formats. Add tags and comments for better searchability.
• Format conversion. Calibre's robust conversion options support a wide variety of file formats.
• File syncing. Calibre's device drivers seamlessly support all the top e-readers and devices.

What's New:

Version 6.27.0:

Bug fixes

• Book information dialog: Fix a regression that caused incorrect color for titles in dark mode
• E-book viewer: Fix searching does not jump to first match if all matches are before current position in book
• EPUB Output: Fix duplicated title page entry in spine for books that define a title page that ends up getting split
• Allow for-light/dark-theme icon overrides to work for plugin icons placed by the user in the override folder
• PDF Output: Fix background image + text not rendering correctly if the same background image is used with different text multiple times
• E-book viewer: Fix section titles in highlights panel being incorrectly expanded to full titles when the section has multiple highlights
• Prevent Quickview window from opening in the background
• Edit book: Fix a regression in the previous release that caused an error when doing text based searches

Screenshots:

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