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Calibre

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Adapted from calibre (software) - Wikipedia, the free encyclopedia

Calibre is an open source e-book computer software application suite licensed under GPL. It organizes, saves and manages e-books, supporting a variety of formats. It also supports e-book syncing with a variety of popular e-book readers and will, within DRM restrictions, convert e-books between differing formats.

History

Kovid Goyal started developing it  2006, when the Sony PRS-500 was introduced. The main idea was to enable the use of the PRS-500 on Linux. Goyal, with support from the MobileRead forums, reverse-engineered the proprietary file. In 2008, the name was changed to Calibre, generally written in lowercase even at the beginning of a sentence.

Features

Calibre supports many file formats and reading devices. Most of these e-book formats can be edited, for example, by changing the font or the font size and by adding an auto-generated table of contents. Conversion and editing is only possible after digital rights management restrictions have been removed from commercially purchased e-book files. Calibre does not natively support this removal, but the capability can be added to the program by installing freely available plug-ins.

calibre helps to organize the personal e-book library by allowing the user to sort and group e-books by metadata fields. Metadata can be pulled from many different sources (ISBNdb.com, Google Books, Amazon, LibraryThing). Search for author, title or keyword in the whole library, is possible. Full-text search is not yet implemented.

E-books can be imported into the calibre library, either by adding files manually, or by syncing an e-book reading device. On-line content-sources can be harvested and converted to e-books. This conversion is facilitated by so-called "recipes", short programs written in a Python-based domain-specific language.

E-books can then be exported to all supported reading devices via USB or via the integrated mail-server. Mailing e-books enables, for example, sending personal documents to the Amazon Kindle family of e-book readers.

The content of the library can be remotely accessed by a web browser, if the hosting computer is running. In this case, pushing harvested content from content sources is supported on a regular interval (subscription).

Development and license

The application is written in Python and C. It is published under the GNU General Public License v3 as free and open source software.[7]

To convert external content sources calibre supports the RSS-Feedreader protocol; for remote access an E-Mail- and Webserver (HTTP) is supplied.


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Old News ;-)

[Dec 01, 2015] Calibre 2.45.0 Lets Users Generate Covers with Book Metadata, Fixes 10 Bugs

Calibre 2.45.0 introduces three new features. The first one is support for customising the text displayed under covers, which has been implemented under Preferences - Look & Feel - Cover browser. While the second feature lets users add their own columns or view detailed information about existing ones in Preferences, the third one allows you to generate covers with book metadata when sending books without covers to a device.

... ... ...

Last but not least, The Observer and The Guardian news sources have been improved. Download Calibre 2.45.0 for GNU/Linux, Mac OS X, and Microsoft Windows operating systems right now from Softpedia.

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[Aug 24, 2014] Calibre eBook Reader and Editor 2.0 Massive Update Arrives in Force

The Calibre eBook reader, editor, and library management software has been promoted to version 2.0 and it integrates a huge number of new features.

Calibre is a software that can be used for numerous tasks, like reading, converting, and managing eBooks and it's updated almost on a weekly basis. The developers bring changes and major improvements all the time, but it seems that a significant jump in the version number was also required.

The application has changed a lot since it was promoted to version 1.0 and that can be clearly seen in the interface. It's a stable application, with too many features to count. It's able to do pretty much anything that you can imagine, but the most interesting and the biggest feature has to be the ability to edit eBooks.

There are very few applications that can edit eBooks on a professional level, but Calibre is definitely up to the task. This particular feature has enough time to mature, and right now Calibre is probably the best software on Linux that can edit eBooks, and most likely on other platforms as well.

According to the changelog, Calibre now has an e-book editor capable of editing books in the EPUB and AZW3 (Kindle) formats, with many powerful tools and features specially designed for making editing e-books easier, users now have the ability to compare books, which allows them to see all the differences between two books, highlighted, side-by-side, and it's now possible to connect to any Android phone or tablet on OS X and the application should automatically detect and connect to it.

It's worth noting that Calibre has also switched to Qt 5, which means that the interface should look a lot more modern and it should integrate much better with the operating system. Also, a number of improvements have been added to the way the library is now organized, which should make the entire experience much more streamlined.

Installing the latest version of Calibre is quite easy, as the developer provides a simple script to do all that. It should be platform-independent, but some users might not be able to run it.

Users can also download the source package and try to compile it. It has many dependencies, so that might be an issue. The only other alternative is to get it from the repositories, but you might not get the latest release.

You can also check out our review of Calibre and download Calibre 2.0 from Softpedia, but keep in mind that this is just the source.

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calibre - E-book management  -- main site

Frequently Asked Questions ó calibre User Manual

Calibre - MobileRead Forums

Various tutorials on how to create/convert e-books with calibre.

 Goyal, Kovid (2013-07-19). "calibre - What's new". Retrieved 2013-07-19.
 
http://calibre-ebook.com/about#history

Sorrel, Charlie. "How To Strip DRM from Kindle E-Books and Others". Wired.com.  01.17.11



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