Adobe Digital Editions vs Calibre

Last updated: October 21, 2023
Adobe Digital Editions and Calibre are two software programs used for managing and reading e-books on a computer. Adobe Digital Editions is a free software that allows users to read and manage e-books in the EPUB and PDF formats, as well as borrow and lend e-books from public libraries. It also offers features such as annotations and highlighting, and syncing e-books across multiple devices. Calibre, on the other hand, is a popular open-source software that provides a wide range of features for managing and organizing an e-book library. It allows users to convert e-books between different formats, edit metadata, and transfer e-books to various devices.
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Adobe Digital Editions
Adobe Digital Editions software offers an engaging way to view and manage eBooks and other digital publications. Use it to download and purchase digital content, which can be read both online and offline. Transfer copy-protected eBooks from your personal computer to other computers or devices. Organize your eBooks into a custom library and annotate pages. Digital Editions also supports industry-standard eBook formats, including PDF/A and EPUB.
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Calibre
calibre is an open source e-book library management application developed by users of e-books for users of e-books. It has a cornucopia of features divided into the following main categories: Library Management, E-book conversion, Syncing to e-book reader devices, Downloading news from the web and converting it into e-book form, Comprehensive e-book viewer, Content server for online access to your book collection
Adobe Digital Editions vs Calibre in our news:

2023. Calibre 7.0 adds innovative notes feature, audio EPUB support



Kovid Goyal, the creator of Calibre, has unveiled Calibre 7.0, the latest stable release of the widely acclaimed cross-platform, open-source e-book management software. With this update, users gain the capability to store notes enriched with links, images, and formatted text for elements such as authors, series, publishers, and tags. Calibre 7.0 revolutionizes the e-book landscape by introducing support for "Audio EPUB" books, featuring pre-recorded voices reading the text, although the developer acknowledges potential issues with this feature on Linux systems due to patented codecs. Additionally, the release addresses a longstanding user request by allowing seamless storage and management of "data" files associated with a book, making the process of adding extra data files straightforward through a simple selection and right-click action.


2023. Calibre improves metadata editor



Calibre has released a new version 6.17, which brings several new features and enhancements. One notable addition is the support for WOFF format fonts and CID keyed fonts in font subsetting, resulting in further reduction of file sizes. Additionally, when data files are present, the book details now include a convenient link to open the data files folder. The template language has been upgraded with various functions that allow users to query the extra files associated with a book. In the Edit book feature, users can now compress images in the WEBP format. The comments editor has also been improved, offering buttons to easily create links to data files and folders when inserting a link. Furthermore, users can now display the id, formats, and path columns through Preferences, allowing for more customization. A new button has been added to the trash bin, enabling users to easily clear its contents. Lastly, the metadata editor now utilizes a dedicated editor with a preview option for custom columns that store Markdown formatted text.


2023. Calibre now allows to read books aloud with more voices



New Calibre's update brings more voices to Read Aloud feature. It works only on Windows because uses Microsoft speech subsystem. When Read aloud is speaking, you can make the control bar translucent so that words under the bar are visible. There is a number of other new features. Spell check dialog now allows Up and Down arrow keys to work regardless of focus. Edit book feature now allows automatic fixing of various simple CSS errors. And File browser allows using keyboard shortcuts to re-order the spine. Also from the library you can now open the book folder easily. Add by ISBN feature now allows adding using identifiers other than ISBN as well. The update is bundled Qt to 6.4 this means calibre on macOS is now only supported on Big Sur and newer.


2022. Ebook catalog software Calibre 6.3 fine-tunes full text search



In several updated Calibre developers added some new improvements and bug fixes for full-text search, introduced in version 6. They added a button to re-index a book - useful if the book's contents have been changed outside calibre. Search queries start supporting quoting using "docstrings" for easier escaping. The search now ignores soft hyphens when extracting searchable text from books (though you will have to re-index your library to take advantage of this). The e-book viewer now allows searching for nearby words using a new "Nearby words" search mode. New fts_search and fts_index commands allow to perform full text searching from the command line.


2022. Calibre 6.0 now has text to speech and full text search



Calibre has recently released a significant update to its ebook management software, introducing several noteworthy features. The standout feature is Full Text Search, which offers the option to index your entire library, enabling you to search for specific words or phrases throughout your collection. To utilize this feature, simply click on the FT button located to the left of the search bar, allowing you to initiate the library indexing process. Once indexing is complete, you can perform searches within your library. Another prominent addition is the Read Aloud feature, which leverages your computer's default voice assistant, including Google Assistant, Siri, Alexa, and Cortana, to read any ebook in your library. Furthermore, you have the flexibility to adjust the playback speed, catering to your preferred pace. Additionally, Calibre now provides support for Apple Silicon CPU architectures without the need for Rosetta translation. This enhancement is particularly significant, as the app is now optimized for Apple laptops and the Apple Studio computer, equipped with the M1 and M2 chips, respectively.


2021. Calibre added support for the 11th Gen Kindle Paperwhite 5



Ebook management software Calibre has just added support for the brand new Kindle Paperwhite and you can now manage your e-readers collection when having it plugged into your PC or MAC. Furthermore, this release adds support for EPUB 3 landmarks in the Set Semantics tool under the Edit Book component and moves the option that allows Calibre to recognize numbers when sorting from Preferences > Tweaks to Preferences > Behavior. Calibre is one of the best ebook management software in the world, millions of users use the program. It can do some powerful stuff, such as fetch missing metadata on ebooks that you downloaded from the internet, such as book covers. It has an ebook viewer, which can edit titles, can download magazines from the internet and import your collection of books from your PC right to the e-reader, at the click of a button. Calibre


2020. Calibre 5 adds highlighting to ebook viewer



Cross-platform eBook management, reading, and editing software Calibre saw a new release. There has been a lot of work on the calibre E-book viewer. It now supports Highlighting. The highlights can be colors, underlines, strikethrough, etc. and have added notes. All highlights can be both stored in EPUB files for easy sharing and centrally in the calibre library for easy browsing. Additionally, the E-book viewer now supports both vertical and right-to-left text. calibre has also moved to using Python 3. This is because Python 2 was end-of-lifed this year. This should be completely transparent to calibre users, the only caveat being that some third party calibre plugins have not yet been ported to Python 3 and therefore will not work in calibre 5


2019. Calibre 4.0 improves Content server



The new version of popular ebook management software Calibre is making its Content server ever more capable. It has gained the ability to Edit metadata, Add/remove books and even Convert books to and from all the formats calibre itself supports. It is now a full fledged interface to your calibre libraries. Besides, the new version is built on the new web browser engine Qt WebEngine. The change to use Qt WebEngine has entailed a complete rewrite of various parts of calibre, including the E-book viewer, PDF Output, Book details etc. Every attempt has been made to preserve features and functionality in a backwards compatible way, see below for a list of some known incompatibilities.


2019. Calibre adds support for the Nook Glowlight Plus 7.8



Calibre has just announced that they have official support for the new Barnes and Noble Nook Glowlight Plus. This means when you plug the e-reader into your PC via the USB cable, it will now be recognized. This new is good news for anyone who uses the software and has their own collection of ebooks, comics, magazines or newspapers they want to read on their Nook.


2018. Calibre added support for the Kindle Paperwhite 4



The popular ebook management program, Calibre, has introduced support for the new Amazon Kindle Paperwhite 4. As a result, the program can now recognize your Paperwhite device, enabling you to seamlessly transfer a wide range of content such as documentation, ebooks, manga, PDF files, and more directly to your Paperwhite. In addition, Calibre has introduced new features including metadata plugboards, which allow you to define plugboards that modify comments metadata, and a convenient keyboard shortcut (Ctrl+M) in the E-book viewer for easily toggling between paged and flow mode. Calibre is compatible with Windows, MAC, and Linux operating systems. With its comprehensive metadata support, Calibre makes it simple to fix any issues with ebooks downloaded from the internet, such as incorrect author information or missing cover art, with just a few clicks of a button.


2017. calibre 3.0 improves Content server



The latest release of the ebook catalog software, Calibre 3, is now available. One of the most prominent additions is a completely revamped calibre Content server. This enhanced server enables users to wirelessly browse their calibre book collection on modern smartphones and tablets, and even read books directly within the phone's browser. Notably, the books are stored in offline storage on the device, eliminating the need for a continuously active internet connection or the Calibre software running in the background. Additionally, Calibre 3 now offers native support for high-resolution (Retina) screens and allows the installation of various icon themes to cater to different preferences. It also introduces the capability to convert supported book formats into Microsoft Word (DOCX) files. Furthermore, users can seamlessly transition between Word documents and e-book formats, enabling greater flexibility and convenience.


2017. Older versions of Adobe Digital Editions are no longer compatible with Overdrive



Ebook catalog software, Adobe Digital Editions, offers the functionality to transfer borrowed e-books from libraries or other bookstores to your e-reader, smartphone, or tablet. However, users of older versions of Digital Editions have been encountering numerous errors recently. This can be attributed to the updates made by Google Play, Overdrive, and other online retailers to the Adobe Content Server, resulting in compatibility issues for those relying on outdated versions of Adobe Digital Editions. To address these problems, it is crucial to update to version 4.5 of the software, which currently appears to be functioning without major issues.


2016. Adobe Digital Edition patches critial security flaws



Adobe Digital Editions, a program utilized for acquiring, managing, and reading e-books, has unfortunately become a target for hackers, much like other Adobe software. Cybercriminals exploit this software as a means to distribute viruses and malware onto users' computers. Recently, four critical vulnerabilities that allow for arbitrary code execution were discovered in Adobe Digital Editions. Considering that the software relies on the internet for updates and acquiring books, this poses a significant risk to your computer's security. To address these vulnerabilities, Adobe is promptly releasing a security update. It is crucial that you update your Adobe Digital Editions software as soon as possible, especially if you use it for managing your e-books.


2015. Adobe Digital Editions app for the iPad released



Adobe has introduced an iPad version of its personal library organizer, Adobe Digital Editions. This app is compatible with ePUB, including ePUB3, and PDF formats. While the app may appear utilitarian in design, lacking an exciting demonstration of its capabilities, it offers a straightforward guide to reading ePUBs and PDFs once installed. Adobe is not alone in facing criticism for its own eBook products, as even Apple's iBooks Store rarely showcases the potential of its own iBooks Author, suggesting a certain disconnect in Apple's publishing efforts. Nonetheless, Adobe Digital Editions proves useful for readers seeking access to eBooks from their local library.


2014. Adobe’s e-book reader tracks readers’ data



As per a report from Ars, it has come to light that Adobe Digital Editions, the widely-used e-book and PDF reader in numerous libraries, keeps track of and records the activity of patrons accessing electronic lending libraries. Disturbingly, this includes logging every document added to the local "library" and monitoring users' interactions with those files. Adding to the concern, these logs are transmitted over the Internet without encryption, meaning that anyone capable of monitoring network traffic (such as the National Security Agency, Internet service providers, cable companies, or individuals sharing a public Wi-Fi network) can easily observe users' actions. This raises significant privacy and security issues, as unauthorized individuals can essentially peer over the shoulders of readers, infringing upon their privacy and potentially accessing sensitive information.


2014. Calibre 2.0 gets ebook editor



Kovid Goyal has recently launched the latest version of his ebook manager, Calibre 2.0. The standout feature of this update is the inclusion of an e-book editor that supports editing EPUB and AZW3 (Kindle) formats, equipped with a range of powerful tools and features specifically designed to simplify the editing process. Moreover, the software now features a "Compare Books" tool, allowing users to easily view and highlight all the differences between two books side by side. While calibre has previously supported connectivity with Android devices on various operating systems, this capability has been extended to macOS as well. Users can now effortlessly connect their Android phones or tablets to calibre on macOS, just as they could on Windows and Linux. Additionally, users now have the ability to define simple rules to display emblems (small icons) next to book covers in the cover grid. For example, a heart emblem can be assigned to books highly rated by the user, or a tick mark can be applied to indicate books that have been read. Another notable addition is the "Mark Books" tool, which allows users to temporarily mark books with a pushpin icon. These marks are automatically cleared upon restarting calibre.


2014. Adobe Digital Editions 3.0 promises better DRM, layout support



Adobe has recently unveiled the latest iteration of its library organization software, Adobe Digital Editions 3.0, catering to both Windows and Mac users. The prominent highlight of this release is the introduction of an upgraded DRM Scheme. According to Adobe, this new scheme has undergone rigorous reinforcement to bolster its security measures, thwarting any unauthorized access to files protected by Digital Rights Management. Version 3.0 also brings notable enhancements to the search functionality when sifting through PDF files, enabling users to conduct targeted searches within specific text ranges. Additionally, the update incorporates improved support for vertical layout and orientation by incorporating limited compatibility with the "epub-text-orientation" CSS property. Adobe Digital Editions now grants access to four out of the property's six values: mixed, upright, sideways-right, and sideways. Moreover, it now accurately aligns special characters that serve as both full- and half-width representations. Users can readily obtain Adobe Digital Editions 3.0 as a freely available download for both Windows and Mac platforms. To utilize the software as a supported device for reading protected eBook files, users must possess an Adobe ID, which is necessary for signing in and authorizing their computer.


2014. Adobe Digital Editions 2.0 adds accessibility support



Adobe has introduced Adobe Digital Editions 2.0, a free software application designed for organizing ebooks on both PC and Mac platforms. This release marks the inclusion of accessibility support for the first time, along with the incorporation of cutting-edge mobile reader technology, facilitating seamless ebook management between computers and mobile devices. The standout feature in Adobe Digital Editions 2.0 is its enhanced accessibility functionality, which ensures a more convenient reading experience for ebooks. This encompasses provisions for high-contrast screens and assistive software such as Window-Eyes (Windows), VoiceOver (Mac), JAWS, and NVDA. Furthermore, Version 2.0 encompasses the latest advancements in mobile reader technology, including Vendor ID, Bookseller ID, and Japanese text support. These additions enable users to sign in using Vendor or Bookseller IDs from platforms like Google or Barnes & Noble, granting access to purchased content from these vendors. Adobe Digital Editions 2.0 can be downloaded free of charge for both PC and Mac systems. To transfer book purchases utilizing the program, users need a compatible EPUB-capable eBook Reader. A comprehensive list of compatible devices can be found here.


2013. Calibre 1.0 is available for download



WoW! Seven years after it was first released, the free ebook management software Calibre has reached version 1.0. According to the author (Kovid Goyal), lots of new features have been added to the library organizer in this new version — a grid view of book covers, a new faster database backend, the ability to convert Microsoft Word files, tools to make changes to ebooks without needing to do a full conversion, full support for font embedding and subsetting,  an easy to use tool to edit the Table of Contents in ebooks, rewritten PDF Output engine, new tool "Polish books" that allows you to perform various automated cleanup actions on ebooks.


2013. Calibre Server - access your book collection via the Internet



Probably you didn't know it, but Calibre includes the inbuilt web server - Calibre Content Server for remote library management. Besides it can download and send you the books by email. The Calibre server makes your ebooks available to the gadgets within your home or office wireless network. And if you can set up port forwarding on your router - you access your library from a remote location. You can set a password to restrict access. By default access is unrestricted. The content server lets you see the whole Calibre database on your device, which is great, although if you have a lot of books in your library - it can be slow and you have to keep hitting the “Next” button to advance to the next group of books hour after hour. Using this approach you are using the device to choose the books to download. This approach is effective if you’re just browsing your Calibre database looking for a book to download to your mobile device. But if you wish to use the search power of Calibre to locate books that meet specific criteria to download, then Calibre Server is useless. ***