r/Calibre

Update: thanks for all the feedback. The difference between the files and the save to disk option makes sense. Appreciate everyone.

I hope this is something that I can change in settings.

In the storage folder my books have the title and author name, but it cuts off the title to add the author. I don't want the file to have the author name. Here is an example of the problem:

Instead of the file saying,

"Go Home (A Kate Valentine FBI Suspense Thrill Book 1"

it says,

"Go Home (A Kate Valentine FBI S - Blake Pierce"

I played with the import/export settings under "Save books to disk" and have the template set to "title" but no luck.

Any ideas?

So, I've been going though my fanfiction archive on AO3 and working on saving them on Calibre, but I'm realising with the amount I have, the list is gonna become really long, so I'm wondering, does calibre have a collection or album feature that I can organise and seperate specific fics into for better reading and management?

I have books in epub format on my pc.

I'm using calibre to edit the cover image in the metadata options.
When sending epubs to kindle via calibre, it's forcing me to autoconvert to azw3. Another option is to convert to mobi before sending. It doesn't allow me to send them in epub format. I don't know if that has anything to do with my issue.

Regardess of format, the covers I added via calibre in the metadata options do not show up in the thumbnails in the library.

It's worth pointing out that the covers are showing just fine when my kindle in in sleep mode. So the covers are in the somewhere. They just don't show in the thumbnails. What can I do?

Disclosure: I'm the developer. OPDSy is an Android reader, one-time £3.49, no ads or subscriptions and no tracking whatsoever!

I used to read my books on my phone with Kuboo. It's been dead for years and nothing properly replaced it, so I built the reader I wanted and made it work whether your books sit on a server or just in a folder on the device. It all gets combined into one reader.

I use this personally on a daily basis to read books, comics and pdfs so i'm continually evolving the app. Any feedback or feature request will be highly appreciated and put on my roadmap!

What it does right now:

• Any folder on your device is a library — covers, titles and authors, nothing imported or converted. Or open a single file straight from another app.
• Add OPDS servers if you run them — Komga, Kavita, Ubooquity, Calibre-Web, BookOrbit or any OPDS 1.2/2.0 server — and browse everything as one library with a colour badge per source. Each source loads independently, so one slow or offline server never breaks the rest.
• Comics: paged or continuous webtoon scrolling, LTR/RTL for manga, fit-to-screen or fit-to-width, dual-page spreads in landscape, pinch and double-tap zoom, and page prefetch so the next page is ready before you swipe.
• Ebooks: adjustable fonts and line spacing, light/sepia/OLED-dark themes, plus a built-in PDF reader and Markdown with Mermaid diagrams.
• Highlights in five colours with your own notes, and bookmarks in any book or PDF all in one list.
• Text-to-speech sentence by sentence, auto-continuing between chapters, with speed and pitch control and offline or online voices.
• Offline downloads, favourites for books and folders, and Continue Reading that remembers your place across every source.
• E-ink friendly: independent toggles for a high-contrast black-on-white theme and for switching animations off, to avoid ghosting on slow-refresh screens.
• No account, no ads, no tracking. Credentials stay in the device keychain, and optional cross-device sync runs through your own Google Drive, end-to-end encrypted.
• Formats: EPUB, MOBI, AZW3, FB2, PDF, Markdown, CBZ, CBR, CB7, CBT.

Does anyone here serve OPDS from Calibre's own content server rather than Calibre-Web? I've only tested against Calibre-Web and I'd like to fix whatever differs.

Ok, I know it's tempting to just select all your books and run it overnight and wake up to new metadata - but its causing a lot of problems.

In the past when Calibre was not as popular as it is now, and when BOT scraping and AI wasn't a concern so much for the metadata sources, it wasn't a big deal to line up a lot of books and let the download churn for hours, collecting the metadata.

Now - we lost Amazon, we lost Fantastic Fiction, Goodreads was down in June, and other newer metadata sources that allow API access has posted they have had a LOT more traffic from Calibre users to the point where some ip's have been flagged.

I get it - it's tempting to do, but please, realize what you are doing when you line up hundreds of books and click "Download Metadata and Covers" each book is a call on each metadata source - that source is a website - that website notices who is accessing it - and how. Automated calls from Calibre looks like autmated web scraping - and it is. These sites aren't stupid. They see 1000 calls in a row without a break directly into thier site not through a browser as what it is - automated scraping.

They don't want this. They will combat it by means that will break the plugins for any use. CAPTCHAs and WAF/Authentication is one way they have been doing it lately.

Reddit itself did it a few years ago when bots continually scraped the site - and now there is only one app or platform that you can access reddit from outside your browser. It kills me that we lost the Funbox app on Roku because of that. I loved that app - but that's besides the point.

There is going to come a day when you won't be able to access any website through Calibre to get any metadata. I don't want to have it come to that.

Calibre is going through a huge growth and with AI helping develop new plugins, with the new social websites offering more metadata - it's so tempting to just load up your books and download in a big batch to get all the new tags or whatever. Just limit the batches. Keep it under 20-50 books at a time.

What is actually happening in reality is you queue up a lot of books, and start running it ,by about the 20th book - every call results in a 202 or blocked access - but you won't know it until later when you go to finish and accept the final downloads.

Calibre wasted all those hours hitting the sites and getting blocked - and most likely getting your ip flagged in the process because Calibre kept sending out calls based on that queued list and didn't know to stop once you were getting blocked. It just logs that it was blocked and you end up with no changes in metadata.

Also, Im not sure if anyone stopped to think that downloading metadata like that is a huge gamble because you don't know that it's getting the right book.

Depending on the site, Calibre does a search on the title/author or isbn if its available. Depending on how the title/author is presented can make a big difference on the returns. Some sites require specific formatting of author initials, some sites don't accept multiple authors (in cases when more than one author is in a book) - Titles may need to be stripped of extra information like series or other things that get packed in. This results in either the book not being found or the wrong book being sent back. If you batch download you need to manually look over EACH result after its run - and approve or not approve the proposed changes. Each book. If you thought to save time by running the download and having it get all your books and the metadata would be perfect for each book - you are wrong. So, unless you plan on going through and checking out each one of those proposed changes instead of just "aproving all" you are going to be ending up in a worse spot than you were when you started. Now instead of not-nice metadata - you wil have your books title and author change to a whole different book - and you won't even know it because of course you didn't think to create an original title or original author column to copy over the original titles and authors for safe keeping to compare against what you ended up with.

Sorry, I digress but Im kind of in a mood right now when I see people post that they lined up 2000 books and wonder why now they are being blocked from getting metadata from some source.

TL;DR

Only use the batch download metadata and covers in the one-click method on 20 books or less at one time. Any more at once is going to be putting strain on the sites being called, will end up with bad book metadata, will end up getting your ip flagged and banned, cause the websites that are giving the metadata to tighten up on automated calls - breaking their use for everyone - and will cause you more problems than if you just did it in smaller batches.

EDIT: Yes - I have submitted a request to the BUGs mentioning this - I know it's a Calibre design thing that would prevent such batch uploading. I know that it's up to the site to allow or not allow the amount of books - hence the mention that it will allow what it will then just go on to block the following calls, but the point of this was just to bring awareness to the subject.

EDIT 2: The Bug/Request to Calibre has been answered. Calibre will be fixed to include a popup letting users know that they are attempting to download too much metadata - and a warning that the request will most likely be blocked from the servers they are attempting to accesss, along with a y/n "would you like to continue".

I was paraphrasing, but the fix was done in the commit on GitHub and it should be out in the next update or so :)

Am I wasting my time trying to remove DRM from my Kindle books I purchased on my 5.19.2 firmware Kindle? I’ve tried a few different ways to do it that I’ve seen searching around and nothing has worked.

I would really like to read my books on my new XTEINK X3 and in KOreader.

Hi everyone,
I’ve been using Calibre for a while now, though mostly just the “basic” features so far.

Now that I’m diving deeper into the program, I’ve immediately run into a problem: I have about 2,000 books in my library and want to update the metadata and tags. Everything is actually set up, and I’m using the Goodreads plugin.
However, I can only update about 20 books; after that, the progress freezes and nothing works anymore.
I always have to restart Calibre 😑. With 2,000 books, that obviously takes forever 🙈.
My question for you: Is there a better plugin for this purpose, or did I perhaps overlook something in the settings?

I'm using the latest version of Calibre.

please share me your favorite plugins names, i need to step up my game ty

One of the KCC's main features is converting Humble Bundle manga PDFs to native formats for Kindle, Kobo, ReMarkable, and other eink ereader devices for maximum image quality and significantly smaller file size. 

The app solves many common problems of using the files directly provided by Humble Bundle like removing margins for smaller screens, better handling of 2 page spreads, fixing gray artwork to be black on eink, and much faster page turn performance.

The app runs on Windows, macOS, and Linux. The app has a Windows code sign. The app has been in continuous development since 2012 and has nearly 500K total downloads. 

I just downloaded Calibre on my Macbook (currently MacOS Tahoe 26.6.2). I moved the Calibre .dmg file into the Applications folder, but the error message (i.e. "The disk image couldn’t be opened. The operation couldn’t be completed. Input/output error”) persisted.

What should I do so that I can open and use Calibre properly on my Macbook?

The version I downloaded was the latest one as of now, that is, Version: 9.13.0.

Any advice and/or input would be very much appreciated. Thank you in advance!

It's been quite a few years since I've bought a Kindle book, but there's a book I want that just isn't available in any other ebook format. I haven't removed DRM from a Kindle book from years as well, and I've heard there's a new version of the Kindle app that makes things a lot harder.

Is there any way for me to get that book and remove the DRM from it that doesn't involve downloading multiple hacks and spending forever trying to get it to work. I've been trying to recover from some health problems, and I don't really feel up to undertaking a long project just to get one book.

I suppose beggars can't be choosers, but I have every ebookI own in Calibre, and, maybe it's OCD, but I just want to include the book in my Calibre library.

I'm not looking for a pirated copy, just to use the book I buy without DRM. I know this may be asking a lot, but I'd definitely be willing to send the cost of the book to someone who has a functioning workflow and could remove the DRM fairly effortlessly.

Ok, I bought a book from ebooks.com, I have the .lcpl and the key, but no matter what I cannot get it to open. I'm on Linux Mint, Thorium says the lcpl is locked after i input the code, and the dedrm tool for calibre just will not trigger. I have the input plug-in and dedrm installed, but it just loads in directly to calibre as .lcpl without triggering the plug-ins. I am at a complete loss, PLEASE someone help, I just want to put it on my XTEInk

I have been trying to use calibre, but I always seem to get it wrong. Can someone here please help me convert this book from pdf to epub?

I have about 3k worth of kindle books that I would like to convert to EPUB format, so I can read them on my Kobo. I have set up K4PC, Satsuoni's Tools, and Calibre. I have converted about 15 books so far. Is there a faster method to download all of the books rather than just double-clicking on each one to download it and then running a script?

Do I need to download only 50 a day is there a limit set by Amazon on how many I can download and read? These are all books I own. I just want them to be in epub format so that I can read them on my Kobo

I have also set up Calibre Web and love it,

I have been extremely frustrated today after trying several different times to use the DeDRM tool to strip the DRM from $60 worth of books I purchased at ebooks.com and want to load on to my XTEInk X4. I have used DeDRM 10.0.9 which from what I understand is the latest version. I have taken the acsm files and downloaded them through ADE using Wine. I can read the books on ADE. When I click and drag from My Digital Editions into Calibre, they will not convert or open because they have said they're DRM protected. Somehow, the plugin isn't working for me and I don't understand what I've done wrong. I have also tried the DeACSM plugin and have them running simultaneously, however the DeACSM plugin cannot seem to get my ADE login information and therefore is not doing much of anything either. Can someone break it down for me like I'm an idiot? (Because I may be.) I'm running the latest release of Linux Mint Cinnamon and have sourced the plugins through the Calibre plugin list. Thanks in advance, hoping I actually get to read these books someday.