4972af52ab
- All Qt operations are now done on the GUI thread. File operations are done on a separate thread. - QPixmap is used instead of QImage. - The ThumbnailCache is now versioned. The rendering operations are done using a FunctionDispatcher instead of a Qt signal to avoid a long queue of render operations causing the UI to be sluggish. Emblems etc aren't rendered if the cover cache hasn't been set for the book. This reduces some subtle flashing as the cover is repainted. However, covers are seen as empty regions until the cover is actually rendered. I also fixed a bug where the wrong cache would be used after a switch library. The UUID used for the cache was set at thread creation time instead of set_database time.
calibre
calibre is an e-book manager. It can view, convert, edit and catalog e-books in all of the major e-book formats. It can also talk to e-book reader devices. It can go out to the internet and fetch metadata for your books. It can download newspapers and convert them into e-books for convenient reading. It is cross platform, running on Linux, Windows and macOS.
For more information, see the calibre About page.
Screenshots
Usage
See the User Manual.
Development
Setting up a development environment for calibre.
A tarball of the source code for the current calibre release.
Bugs
Bug reports and feature requests should be made in the calibre bug tracker at Launchpad. GitHub is only used for code hosting and pull requests.
Support calibre
calibre is a result of the efforts of many volunteers from all over the world. If you find it useful, please consider contributing to support its development. Donate to support calibre development.
Building calibre binaries
See Build instructions for instructions on how to build the calibre binaries and installers for all the platforms calibre supports.
calibre package versions in various repositories
