Calibre is a free and open source e-book library management application developed by users of e-books for users of e-books.
Now more and more fans reading books on portable mobile devices, which have already been set. E-books come about in 4312 formats. But for smart phones, mobile phones and other portable devices require their own formats and different too. Today, these formats: AZW Amazon, MOBI MobiPocket, LIT Microsoft, Palm PNPd eReader, BBeB Sony, Epub, etc. Here, you will help the program Calibre

It has a cornucopia of features divided into the following main categories:
Library Management
* Calibre manages your e-book collection for you. It is designed around the concept of the logical book, i.e., a single entry in your library that may correspond to actual e-book files in several formats.
* Virtual Libraries: Easily partition your large calibre library into smaller 'virtual' libraries
* Calibre can sort the books in your library by: Title, Author, Date added, Date published, Size, Rating, Series, etc.
* In addition, it supports extra searchable metadata:
* o Tags: A flexible system for categorizing your collection however you like
* o Comments: A long form entry that you can use for book description, notes, reviews, etc.
* You can easily search your book collection for a particular book. calibre supports searching any and all of the fields mentioned above. You can construct advanced search queries by clicking the helpful "Advanced search" button to the left of the search bar.
* You can export arbitrary subsets of your collection to your hard disk arranged in a fully customizable folder structure.
* Finally, calibre will even go out onto the internet to find book metadata based on existing title/author or ISBN information. It can download various types of metadata and covers for your books, automatically. The metadata system is written using plugins so that different types of metadata sources can be supported in the future.

Tools:
* "Edit ToC" that allows you to edit or create a Table of Contents easily in EPUB or AZW3 ebooks.
* "Polish books" that allows you to perform various automated cleanup actions on EPUB and AZW3 files without doing a full conversion.

E-book conversion
* Calibre can convert from a huge number of formats to a huge number of formats. It supports all the major e-book formats. The full list of formats can be found here.
Input Formats: CBZ, CBR, CBC, CHM, DJVU, EPUB, FB2, HTML, HTMLZ, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, SNB, TCR, TXT, TXTZ
Output Formats: AZW3, EPUB, FB2, OEB, LIT, LRF, MOBI, HTMLZ, PDB, PML, RB, PDF, RTF, SNB, TCR, TXT, TXTZ
* The conversion engine has lots of powerful features. It can rescale all font sizes, ensuring the output e-book is readable no matter what font sizes the input document uses. It can automatically detect/create book structure, like chapters and Table of Contents. It can insert the book metadata into a "Book Jacket" at the start of the book.

Syncing to e-book reader devices
* Calibre has a modular device driver design that makes adding support for different e-reader devices easy. At the moment, it has support for a large number of devices, the complete list of which is here.
* Syncing supports updating metadata on the device from metadata in the library and creation of collections on the device based on the tags defined in the library.
* If a book has more than one format available, calibre automatically chooses the best format when uploading to the device. If none of the formats is suitable, calibre will automatically convert the e-book to a format suitable for the device before sending it.

Downloading news from the web and converting it into e-book form
Calibre can automatically fetch news from websites or RSS feeds, format the news into a ebook and upload to a connected device. The ebooks include the full versions of the articles, not just the summaries. Examples of supported news sites include: The New York Times, The Wall Street Journal, The Economist, Time, Newsweek, The Guardian, ESPN, and many, many more…

Calibre has over three hundred news sources and the news system is plugin based, allowing users to easily create and contribute new sources to calibre. As a result the collection of news sources keeps on growing!

Upgrading
If you want to upgrade a previous version of calibre portable, download the latest version of the installer from here and run it, choosing the location of your previous Calibre Portable install. The installer will automatically update Calibre Portable.

Release: 0.9.40 [18.07.13 22:00]
- New Features
* EPUB Output: Add an option to insert an inline Table of Contents into the main text.
* Driver for LG Android phone
* When matching books in the library against the device manually, pre-fill the search field with the book title
- Bug Fixes
* PDF Input: Fix a regression that caused some images to be flipped when converting PDF files that use image rotation operators.
* Fix regression that caused incorrect font size in dropcaps generated by the DOCX input plugin
* Get Books: Fix searching for title and author returning some extra matches, if the title starts with an article like the, a or an.
* PDF Output: Fix extra blank page being inserted at the start of the chapter when converting some epub files from feedbooks
* PDF Output: Workaround bug in WebKit's getBoundingClientRect() method that could cause links to occasionally point to incorrect locations.
* E-book viewer: Fix a bug that could cause the reported position to be incorrect immediately after opening a previously opened book. * This also fixes the Back button not working if a link is clicked on the page immediately after opening the book.
* Fix memory card not being detected for Elonex 621 on Windows
* Fix regression in last release that broke auto-conversion of ebooks when sending to device/sending by email.
* Get Books: Update amazon plugins for website changes
* Allow using non-ascii chars in email passwords.
- New news sources: Il Foglio by faber1971, Le Monde Diplomatique and Acrimed by Gaetan Lehmann
- Improved news sources: Galaxy's Edge
Release: 0.9.39 [11.07.13 22:00]
- New Features
* Bulk metadata edit: Add a checkbox to prevent the refreshing of the book list after the bulk edit. This means that the book list will not be resorted and any existing search/virtual library will not be refreshed. Useful if you have a large library as the refresh can be slow.
* Allow manually marking a book in the calibre library as being on the device. To do so click the device icon in calibre, then right click on the book you want marked and choose 'Match book to library'. Once you are done marking all the books, right click the device icon and choose 'Update cached metadata'
* Driver for Coby Kyros MID1126
* When adding formats to an existing book, by right clicking the add books button, ask for confirmation if some formats will be overwritten.
* Add a tweak to restrict the list of output formats available in the conversion dialog. Go to Preferences->Tweaks to change it.
- Bug Fixes
* Amazon metadata download: Update plugin to deal with the new amazon.com website
* Edelweiss metadata download plugin: Workaround for advanced search being broken at the Edelweiss website.
* Invalid data in the device database on sony readers could cause errors when sorting device collections, ignore those errors.
* DOCX Input: Fix no page break being inserted before the last section.
* Metadata download dialog: Have the OK button enabled in the results screen as well.
* Get Books: Update empik store plugin
- New news sources: Glenn Brenwald and Ludwig von Mises Institute by anywho
- Improved news sources: Houston Chronicle, cracked.com, mediapart.fr