10 Answers2025-07-28
As far as the plugin ecosystem goes, it feels somewhat DIY. So you search up a plugin to add support for a new ebook format and you find a GitHub repository with 3 stars and a last commit from 2018. It works perfect for a while and then it breaks Calibre in an update. It’s a bit of a trade-off as the official Calibre plugin index is much safer but there are less plugins of a niche nature.
10 Answers2025-07-09
Many converted documents look terrible, even after a perfect conversion. Scan PDFs often require a lot of tweaking. I go into the 'Look & Feel' tab, turn on 'Smarten punctuation' and 'Remove spacing between paragraphs'. Then I change the 'Base Font Size' to something like 14pt to compensate for the Kindle's terrible zooming. Also, in the 'Processing' tab for PDF documents with footnotes, check if they were detected correctly and linking worked properly. It can take a lot of work to make a PDF look native on the Kindle, but it's worth it.
12 Answers2025-07-09
As a manga enthusiast who spends hours organizing and reading digital comics, I've experimented with countless Calibre plugins to enhance the experience. The absolute must-have is 'Kobo Touch Extended'—it optimizes manga for e-readers by adjusting page sizes and margins. 'FanFicFare' is another gem, allowing you to download webcomics and fan-translated manga directly into Calibre.
For metadata management, 'Manga Metadata' scrapes details from AniList and MyAnimeList, saving tons of manual input. If you read Japanese raw manga, 'DeDRM' helps bypass regional locks, though use it ethically. Lastly, 'Quality Check' ensures your files aren’t corrupted—vital for large manga collections. These plugins transform Calibre into a powerhouse for manga lovers.
6 Answers2025-08-08
Unfortunately, the answer to this question is simple: no. You cannot transfer a book you bought from Amazon Kindle Store to another reading app. This is because of the way that DRM works: to allow reading books on various devices, it is locked to specific apps. And circumventing the DRM even for personal reasons is illegal. When buying ebooks, you should look for stores that sell DRM-free books and read them on ebook readers that allow you to read DRM-protected ebooks as well. There are several DRM-free stores, like for example Humble Bundle, Project Gutenberg or even the author’s website.
As for people who have already bought a book and want to format-shift it to another app, ethically speaking, you should be allowed to do that with a purchased item. However, there just isn’t a legal way to do it. Your best bet is to stick to the free official apps of the retailer where you bought your ebook (Kindle for Kindle books, Kobo for Kobo books, etc.). These apps can read your DRM’ed ebooks within their own ecosystem, unlocked for you. The locked garden of inconvenient ebook readers is the price we pay for the locked garden of low ebook prices and vast ebook selection.
7 Answers2025-07-29
metadata too! All the metadata we’ve added to a file (like reading progress, highlights and notes) is stored in Amazon’s cloud and synced with our Kindle accounts. If we were to ‘transfer’ the file to a Kobo, that would not be transferred. We’d have to start from the beginning and add all that back to the book. For some people that would be a show-stopper – the reading experience is now enhanced by our marginalia and our place in the book.
This data would also be lost in a transfer, because it is Amazon’s to lose. So transfer of file isn’t enough to consider a book to have been moved. The experience of reading a book is locked within the Amazon ecosystem. And what is being sold is not just words on a page, but an ongoing and seamless experience of reading. For people who annotate heavily, this means that a lot of their ‘reading’ is lost, when they switch. I hadn’t thought of this before. It’s a consideration.
6 Answers2025-07-04
Yes, theoretically speaking. In practical terms, however, conversion of Amazon eBooks requires a lot of persistence. For example, while Amazon continually updates its DRM, the code used by volunteers to enable conversion of eBooks to read on other devices also must be updated from time to time. At times, a small delay occurs until newly released eBooks can be converted for reading on other eReaders such as a Kobo. Nonetheless, despite occasional instances of temporaryproblems, actively maintained tools for eBooks with DRM that were placed for sale by Amazon are vital utilities, critical to book lovers seeking to ensure ownership of digital copies of their eBook purchases. And, because eBook conversion from an Amazon Kindle eBook to read on a Kobo eReader has long been possible (the ‘path’ having been established a long time ago), and is a very active area, in the vast majority of instances in which problems are encountered, they will be found to be transitory in nature and in due course a solution will be found, already described by users, in the extensive resources of software assistance that have evolved on MobileRead forums and in subreddits devoted to the topic of eBooks.
9 Answers2025-07-05
I’ve accepted the limitations of my Kindles over the years. Amazon’s store, Whispersync, and a generally polished reading device are more important to me than the ability to read books purchased from outside of Amazon with DRMed ebooks. As a result, I simply don’t buy books DRMed from other stores. If a book isn’t available DRM-free from an author or from a store like Smashwords, or it isn’t available on Amazon, I generally won’t buy it. My reading habits are shaped by my Kindles.
But for some, the restrictions on Kindle books would be an unacceptable barrier to entry. They prefer to read on platforms that are more open in terms of what they can do with their eBooks. For me, however, the quality of the Paperwhite screen, the long battery life, and the ‘out of the box’ integration with the Amazon store far outweigh the restrictions on the books that I can read on it. So, to answer my own question, no, but for me that is not a problem as I am happy to function within the walls of the Kindle ‘garden’ – it’s just another of the many factors that one must take into account when choosing an e-reader.
13 Answers2025-07-14
I've encountered this issue more than a few times. The main culprit is usually file format compatibility. Kindle supports MOBI, AZW, and PDF, but newer versions of Kindle don't support MOBI anymore, which Calibre defaults to sometimes. Another reason could be the email address you're using to send the ebook isn't registered to your Kindle account. Amazon has strict policies about which email addresses can send content to your device, and if it's not on the approved list, the transfer fails silently.
DRM protection is another common roadblock. If the ebook has DRM, Calibre can't send it directly unless you use plugins to remove the DRM first, which is a gray area legally. File size can also be an issue—Amazon imposes a 50MB limit for email transfers. Lastly, network issues or temporary Amazon server problems can interrupt the transfer process. It's frustrating when it happens, but checking these factors usually solves the problem.
3 Answers2025-07-03
I’m pretty much just a reader looking to read my Kindle books on my tablet using the PDF app, so this question really resonates with me. Unfortunately, the DRM protection of Kindle books makes it extremely difficult to convert them to PDF. Amazon’s proprietary book format and the Kindle reading apps for iPad, etc. do not allow users to print or save to PDF. Using screenshots of individual pages would be extremely tedious and likely to be in contravention of copyright laws as well.
Instead of breaking the law, I work around it by checking the author’s website for free PDF samples or companion files, buying books in DRM-free ePUB format from retailers like Leanpub, borrowing PDF e-books from libraries that offer them through services like OverDrive, and checking if a classic book is already available in PDF format on sites like Project Gutenberg in various formats. Buying and supporting authors and retailers who sell DRM-free e-books is just one way to encourage authors to continue producing stories for us to read.
11 Answers2025-07-13
Yes, if the cover art is embedded in the book properly in your Calibre library, then yes it should show up when you email the book off to yourself. The ‘Polish’ feature in Calibre does a great job of making sure that all of the book’s metadata, including the cover, gets embedded into the book file for you. When you convert a book or send off a book, all of that book’s metadata travels with it, including the cover. If you see a generic cover when you receive the book, the problem is most likely with the book’s metadata in the source file, not with the process of emailing the book off to yourself. Use the metadata editor in Calibre to fetch the proper cover from the web before sending off the book.