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Calibre is an eBook manager that helps you organize your eBook collection, perform conversions between different eBook formats and synchronize the content of the program's database with that of some eBook reading devices. As an eBook manager, Calibre lets you sort your eBook collection by title, author, date, publisher, rating, size, and series. Calibre itself does not run on the iPhones/iPad, but you can connect to calibre running on your mac, read books and manage your library in several ways. The easiest way to transfer books wirelessly to your iPhone/iPad is to use the Calibre Companion iOS app. Calibre Companion allows calibre to connect to your iPhone/iPad wirelessly, just as though.

Calibre (stylised calibre) is a cross-platformopen-source suite of e-book software. Calibre supports organizing existing e-books into virtual libraries, displaying, editing, creating and converting e-books, as well as syncing e-books with a variety of e-readers. Editing books is supported for EPUB and AZW3 formats. Books in other formats like MOBI must first be converted to those formats, if they are to be edited.

History[edit]

On 31 October 2006, when Sony introduced its PRS-500e-reader, Kovid Goyal started developing libprs500, aiming mainly to enable use of the PRS-500 formats on Linux.^[3] With support from the MobileRead forums, Goyal reverse-engineered the proprietary Broad Band eBook (BBeB) file format. In 2008, the program, for which a graphical user interface was developed, was renamed 'calibre', displayed in all lowercase.^[4]

Features[edit]

Calibre supports many file formats and reading devices. Most e-book formats can be edited, for example, by changing the font, font size, margins, and metadata, and by adding an auto-generated table of contents. Conversion and editing are easily applied to appropriately licensed digital books, but commercially purchased e-books may need to have digital rights management (DRM) restrictions removed. Calibre does not natively support DRM removal, but may allow DRM removal after installing plug-ins with such a function.^[5][6]

Calibre allows users to sort and group e-books by metadata fields. Metadata can be pulled from many different sources, e.g., ISBNdb.com; online booksellers; and providers of free e-books and periodicals in the US and elsewhere, such as the Internet Archive, Munsey's Magazine, and Project Gutenberg; and social networking sites for readers, such as Goodreads and LibraryThing). It is possible to search the Calibre library by various fields, such as author, title, or keyword; however as of 2020, full-text search has not yet been implemented.^[7][8]

E-books can be imported into the Calibre library, either by sideloading files manually or by wirelessly syncing an e-book reading device with the cloud storage service in which the Calibre library is backed up, or with the computer on which Calibre resides. Also, online 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, Calibre's integrated mail server, or wirelessly. Mailing e-books enables, for example, sending personal documents to the Amazon Kindle family of e-readers and tablet computers.^{[9][10][11][12]}

This can be accomplished via a web browser, if the host computer is running and the device and host computer share the same network; in this case, pushing harvested content from content sources is supported on a regular interval (called 'subscription').^{[citation needed]} Also, if the Calibre library on the host computer is stored in a cloud service, such as Box.net, Google Drive, or Dropbox, then either the cloud service or a third-party app, such as Calibre Cloud or CalibreBox, can be used to remotely access the library.^{[13][14][15][16][17]}

Since version 1.15, released in December 2013, Calibre also contains an application to create and edit e-books directly, similar to the more full-featured Sigil application, but without the latter's WYSIWYG editing mode.^{[citation needed]}

Associated apps[edit]

• Calibre Cloud (free) and Calibre Cloud Pro (paid), apps by Intrepid Logic that let one 'access your Calibre e-book library from anywhere in the world. Place your calibre library in your Dropbox, Box, or Google Drive folder, and be able to view, search, and download from your library anywhere'.^[18] As Jane Litte at Dear Author and John Jeremy at Teleread observe: This tool can be used to 'create [one's] own Cloud of eBooks'^[19] and thereby read and allow downloads and emails from one's Calibre library via the Calibre folder in Box.net, Dropbox, or Google Drive. Because the Calibre-generated local wireless feed (OPDS) can only be accessed on devices sharing the same network as the Calibre library, this feature of the Calibre Cloud apps is particularly useful when away from one's home network, because it allows one to download and read the contents of one's Calibre library via the Calibre folder in Box, Dropbox, or Google Drive.^[20]
• Calibre Companion (paid), an app by MultiPie, Ltd., recommended by calibre's developers, 'brings complete integration with calibre on your desktop, giving you total control over book management on your device.'^[21] John Jermey at Teleread notes this app can manage Calibre/device libraries as if one's mobile device were plugged into computer; however, unlike Calibre Cloud, Calibre Companion requires users to be at a computer and use the Calibre-generated local wireless feed (OPDS).^[20]
• Calibre Library (paid), an app by Tony Maro that allows one to 'Connect wirelessly to your Calibre e-book library or other Stanza source. Browse and download your e-books on the go.'^[22] This app's operations and benefits are similar to those offered by Calibre Cloud.^[20]
• Calibre Sync (free), an app by Seng Jea Lee that 'seamlessly connects to your Calibre Library and shows up as a connected device on Calibre. If Auto-Connect option is enabled, your device will attempt to connect to the Calibre Library when it is within the home Wi-Fi network. This allows Calibre to automatically update your device with the latest newspaper or magazines you have scheduled for download!'^[23] As with Calibre Companion, this app requires the device to be on the same network as the Calibre library.
• CalibreBox (free and paid), an app by Eric Hoffmann that, like Calibre Cloud, accesses Calibre libraries from cloud storage.^[24] Unlike Calibre Cloud, it is limited to Dropbox, but CalibreBox supports more than one library at a time, and flexible sorting and filtering. Custom column support for the book detail view, sorting, and filtering by custom columns, and adding more than two libraries are restricted to paid users. The app is built on the design principles of Google's Material Design and is under active development.^[25]
• Calibre-go (free), app by Litlcode Studios lets you access your Calibre e-book library from cloud storage and access the library through Calibre-go to browse, sort, search and read books on your mobile. Calibre-go supports multiple libraries across multiple accounts simultaneously.
• Calibre Sync (paid), an Android app by BIL Studio that lets you access Calibre libraries from cloud storage (Dropbox, OneDrive, Box, and pCloud), or from SD card. Calibre Sync supports multiple libraries across multiple accounts simultaneously, also allows users to browse, sort, search, filter and download books to read on devices.

See also[edit]

References[edit]

1. ^'What's new'. 19 April 2021. Retrieved 19 April 2021.
2. ^Goyal, Kovid. 'calibre release (3.10.0)'. calibre-ebook.com. Retrieved 24 October 2017.
3. ^https://en.softonic.com/articles/interview-kovid-goyal-creator-of-calibre
4. ^'calibre – About'. Calibre-ebook.com. November 2009. Retrieved 2013-07-29.
5. ^Sorrel, Charlie. 'How To Strip DRM from Kindle E-Books and Others'. Wired.com. Retrieved 4 August 2012.
6. ^Zukerman, Erez (December 28, 2012). 'How To Break The DRM On Kindle eBooks So You Can Enjoy Them Anywhere'. MakeUseOf.
7. ^'User named kovidgoyal on fulltext search in TODO list'. 2010-08-01.
8. ^'User named Kovid Goyal (kovid) on fulltext search request'. 2011-05-23.
9. ^'Transferring Kindle Books to Calibre'. Amazon.com. Archived from the original on 18 October 2016. Retrieved 24 March 2016.
10. ^'About Calibre'. Calibre-ebook.com.
11. ^Hoffmann, Eric. 'EBook Software: Calibre'. MobileRead Forums.
12. ^'Featured Tips n Tricks: How to Use Dropbox to store all your ebooks in the cloud'. TouchMyApps. December 5, 2011.
13. ^Wallen, Jack (February 28, 2011). 'How to Use Calibre to Access Your eBook Collection Online'. TechRepublic.
14. ^Biba, Paul (February 18, 2010). 'How to Create Your Own Cloud of eBooks with Calibre, Dropbox, and Calibre OPDS'. TeleRead.
15. ^'Calibre2OPDS'. MobileRead.
16. ^Slangen, Simon (August 5, 2013). 'How To Manage Your Ebook Collection For The Amazon Kindle With Calibre'. MakeUseOf.
17. ^Litte, Jane (July 24, 2011). 'Create Your Own Cloud of Ebooks with Calibre + Calibre OPDS...'Dear Author. Retrieved July 24, 2011.
18. ^'Calibre Cloud'. Google Play. Google, Inc. Archived from the original on 5 April 2016. Retrieved October 23, 2017.
19. ^Litte, Jane. 'Create Your Own Cloud of Ebooks with Calibre + Calibre OPDS...'Dear Author. Retrieved October 23, 2017.
20. ^ ^abcJermey, John (September 30, 2012). 'Calibre Tools For Your Android Device'. Teleread. Archived from the original on June 18, 2013.
21. ^'Calibre Companion'. MultiPie. MultiPie, Ltd. Retrieved October 23, 2017.
22. ^Maro, Tony. 'Calibre Library description'. Google Play. Retrieved October 23, 2017.
23. ^Seng, Jea Lee. 'Calibre Sync'. Google Play. Archived from the original on April 11, 2016. Retrieved October 23, 2017.
24. ^Hoffmann, Eric. 'CalibreBox'. Google Play. Retrieved October 23, 2017.
25. ^'CalibreBox – New Cloud-Based App'. MobileRead Forums. Retrieved October 23, 2017.

Further reading[edit]

• Roy, Lachlan (June 9, 2011). 'A User's Guide to Calibre eBook Manager'. makeuseof.com.

External links[edit]

• Media related to Calibre at Wikimedia Commons

When talking about ebook managing system, Calibre is always the first one that comes into my mind. As the open-source ebook manager and converter, many avid ebook lovers use this freeware to manage their books from different sources. Do you actually know where your Calibre ebooks are stored? Have you ever thought of changing the Calibre library location? If yes, then you come to the right place. You’ll discover your Calibre library location on Windows/Mac, how to change Calibre library location and even Sync Calibre Library across different computers.

1. Calibre Library Location on Window/Mac

If you’ve ever added any ebooks to Calibre, it will generate a folder named “Calibre Library” automatically. All your added ebooks, converted ebooks will be stored in Calibre default library location. Where is the 'Calibre Library' on your Windows or Mac?

Here is the easiest way to find the location of Calibre library.

Click any book on your Calibre library, its detailed information will be display at the right column. Then click “Click to open” besides the “Path” option.

You can easily open your Calibre folder in this way.

Here is the Calibre default folder location:

Windows: C:UsersUser NameDocumentsCalibre Library

Mac: /Users/User Name/Calibre Library

2. How to Change Calibre Library Location

You are not allowed to change the default Calibre location that stored your Calibre converted books, but if you need to do so, you can do it in this way.

1Just copy all the data from your Calibre Library folder and then store them to the new new folder.

Remember to copy the metadata.db file because it stores all the metadata of your ebooks.

2Go to Calibre>>Calibre Library menu>> Switch/create Library.

Click on the 'Folder' icon in the pop-up windows, and navigate to the new folder that stored your Calibre books and metadata.

All done, your older Calibre library will still there but you'll have a new Calibre library with the same name as your new Calibre ebook folder. And you can switch between these two libraries in your Calibre.

3. Advanced Tutorial: Sync Calibre Library across Computers

Is there any way to keep the Calibre library synced across two computers? Sure, if you can transfer your Calibre library to your cloud storage and then set it as the new Calibre library, you can always access your Calibre library from any computer. Let's see how we can make this happen.

1Download and install the cloud storage app.

Download: Google Drive | OneDrive | Dropbox

Since I've already install the OneDrive, here I will show you how to sync Calibre library across computer with the assistance of OneDrive.

2Create a new folder named 'Calibre cloud library' in your OneDrive, and then copy and paste all data from your original Calibre library to the 'Calibre cloud library' folder. Then wait until all the data have been transferred to your OneDrive storage successfully.

3Go back to Calibre, click 'Calibre library' on the top menu bar, then fill in the location of 'Calibre cloud library' and click 'OK'. Then the Calibre cloud library has been set up on one computer. Now close the Calibre on this computer and give it a little time to sync the metadata of your Calibre library. Otherwise, you'll end up wth a snarled library.

4On any other computer that you want to access the Calibre Cloud library, please repeat the above steps. Then at the same OneDrive library as the Calibre Library location and you can build own web-based ebook library.

Pro tip: Location of Onedrive on Windows/Mac

Windows: C:UsersusernameOneDrive

Mac: /Users/username/OneDrive

Notifications for syncing Calibre across different computers:

1Since Calibre is not a multi-user program, you'll have to make sure only one instance of Calibre is accessing this cloud library.

2Once you've finished the reading, please close the Calibre and sync the metadata of your Calibre. Otherwise, you'll damage your Calibre library database and causes the inconsistent with the files in your Calibre library.

3Make sure you sync before every usage no matter which computer you are on.

After finishing this article, can you find your Calibre library location? Or do you have more tips or and tricks about Calibre library? Please just share them in the following comments.

How To Use Calibre On Mac

Iris Yan joined Epubor since 2017. She always wants to share everything related to ebook reading and improve your reading journey.