4 Answers2025-07-14
First, check that the Amazon-approved email address for your Amazon account is correct in Calibre. Then check your Amazon account settings under 'Manage Your Content and Devices' for approved senders. Sometimes an error will occur because the file is too large or is in an unsupported file type. MOBI or AZW3 conversions tend to work okay. I’ve recently been reading ‘Alpha’s Regret: Chasing My Rejected Mate’ for a light and quick read that can be easily sideloaded as a file to my Kindle. It’s a very fast-paced story and follows the exiled heroine as she builds a powerful new life. ‘Alpha’s Regret: Chasing My Rejected Mate’ is often available for free to read on a number of different serials sites.
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.
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.
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.
8 Answers2025-08-10
Mixed results for me. Some of the conversions don’t work if I don’t put ‘convert’ in the subject line and others work just fine and arrive as a book. I’ve found it is often dependent on the original source of the mobi file as well as some of the converters out there. Files from older sources as well as a few of the newer ones require a bit of a push but in the end it’s my preferred method of getting books on my Kindle. No cables to dig out and no hassle with folders. Simple email and off you go. It’s one of the better features of the Kindle but not often mentioned.
8 Answers2025-10-31
The Kindle email address is your Kindle's mailing address. It can be found under the device's Settings, then under Your Account. Note that this is an email address which can send attachments to be converted and delivered to your Kindle, but it cannot be used to send regular email. Complex PDFs containing multiple columns or lots of images may not reflow well in converted form, but can be sent to your Kindle using the ‘Send to Kindle’ app for PC and Mac to get a more faithful reproduction of the original document. But for 90% or more of documents, sending in this fashion is ideal.
5 Answers2026-03-28
Yeah, I pretty much gave up on trying to find a good plugin and just buy EPUBs from Kobo when they're on sale. The books are DRM-free if you request that they not be DRMed at checkout. I don't want to be a part-time project to support the use of purchased books on future devices. That's just not what I paid for.
Every few months, there’s another ‘OMG Plugin Broke’ post in the subreddit after an update and everyone frantically tries to find the new GitHub repo for their favorite plugin. I don’t get paid by the hour, and the hassle to read books I paid for in full is quite sufficient to make me sour on the whole thing. The best plugin is often another bookstore.
8 Answers2025-08-17
The cloud is your friend. All of your purchased titles are stored in the ‘Cloud’ tab, not just what you have downloaded. In order to view the same list of titles on your devices, you need to make sure you are viewing the correct filter. On your app’s library page, click ‘All’ or ‘Cloud’ at the top of the page instead of ‘Downloaded’. This will show you a list of all of the titles that you own, regardless of whether they are on the device that you are currently using. By syncing your library, you are also syncing the cloud view of your library and your current reading position. Make sure to enable Whispersync on all of your devices and visit the cloud view of your library regularly to click ‘Sync’. New purchases that you make on any device will be reflected in the cloud view of your library on all of your devices. This is not a file transfer situation. This is just a matter of acknowledging that you have a master list of titles in the sky, and each of your devices needs to acknowledge that same list.
7 Answers2025-07-06
I resigned myself to buying a Kobo ebook reader. It can natively read PDFs, and handles them way better than Kindle does, outside of its walled garden. For the Kindle app on your own device, I'm guessing a full uninstall and then re-install would reset all your app preferences, and flush out all the caches it has built up. First, make sure all your Kindle books are up to date and in sync with your Amazon account though. Then, log in as you do normally, let it sync your library, and try and Send a simple PDF to your own device via the 'Send-to-Kindle' email address. If it works with that simple file, then the problem must have lain with your previous app installation somehow. If it doesn't work with that though, then the problem lies with the file or your Amazon account settings, not with the new instance of the app on your own device.
9 Answers2026-07-27
The Fire is basically a portable comics reader for me first, followed by ebook reader. I chose to go with the Fire and the Kindle app because it natively supports the comic book formats CBZ and CBR. I import my comics by dragging and dropping them into the “Books” folder. For Amazon-purchased ebooks, I read AZW3 format. Occasionally, I’ll purchase an eBook from elsewhere or download one from a Humble Bundle sale. In those cases, I’ll import them as EPUB and use the Send-to-Kindle web interface to add them to my library. While Send-to-Kindle can be a little slow at times, having all of my books – purchased and added via sideload – in one app, syncing across all of my devices is worth the wait. The list of supported file formats is very suitable for my style of reading. If I read more academic PDFs, then perhaps this would not be as good of a choice, but for the most part, I read a lot of fiction and comics, and the Kindle app is great at reading both of those formats.