Questions tagged [calibre]

Open-source ebook library management application for Windows, OS X, and Linux.

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Text alignment is not available

Recently I have upgraded my Calibre from 4.0.x to 4.17 and I found out a problem which did not occur before. Usually I download AZW3 file from Kindle App (PC version) and copy the downloaded AZW3 ...
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1answer
11 views

Calibre convertion: text goes out of the screen

I just used Calibre to convert this html document into an epub. To do that, I first downloaded the chapter using: wget -r --no-parent -k https://www.supinfo.com/cours/1CPA/ and then I rename the ...
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Blank lines in code blocks not showing up

I'm using pandoc to convert markdown to epub. I checked the converted file with two readers calibre ebook-viewer and atril. Here's a minimal example showing the problem I'm facing: $ cat sample.md ...
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3answers
9k views

How do I make Calibre convert CBZ to EPUB without images shrinking or conversion?

I've got comics in CBZ format with pictures in 2k or 4k pixels tall and when I try converting them to EPUB, Calibre shrinks the pictures to 1k or under, making them very blurry to view on a mobile or ...
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1answer
678 views

It's possible to add a background-color: / background: BLACK (with white text) for a page in an AZW3 ebook?

I'm trying to make a page black background with white text but it doesn't work. (AZW3 format) Any ideas for html code? I've tried both background and background-color and they don't work.
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How to fix the misaligned word wise after sideloading AZW3 with Goodreads?

I sideloaded the AZW3 with Goodreads using Calibre. And I see that the downloaded word wise is misaligned. Is there anyway to fix it manually? I am using Amazon Kindle Paperwhite 4
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16 views

Can anybody help me modifying those css code?

I used those code from Github to change the theme of calibre reader. Everything seems okay but as you can see in the screenshot, at the right part and at the bottom part, the long text gets cut off. I ...
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8 views

How can I update images or edit file paths in Calibre?

Is there a way to update images in Calibre, without deleting them and then re-adding them? I have a project with hundreds of dummy images and am updating them as I go along but I have to currently ...
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1answer
92 views

How can I add a news website that does not have rss feed, to Calibre?

Some of the news websites do not have an rss feed. Is there a way to add such websites to Calibre as a news source?
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1answer
378 views

How to call a plugin from command line?

How to, lets say, hyphen an ebook with Hyphenate This! plugin from command line?
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Calibre Cover Grid View in Device Mode

Calibre shows a nice cover grid view of my library. However, when I switch over to the Device View to see the ebooks on my device (Kindle Paparwhite) I can only see them as a list. When I step through ...
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1answer
20 views

Hash (#) in filename loses chapter information when converted with calibre

I use calibre's ebook-convert to convert HTML files into MOBI files. I have found that if the HTML filename contains a hash-sign (#), then the "chapter structure" of the generated MOBI file is broken. ...
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1answer
319 views

how to NOT have calibre reduce pictures' resolution when converting from epub (or anything I guess) to MOBI

I'm selling art ebooks on KDP Amazon, and I need the pictures not be shrinked as they automatically are when passing from odt to mobi/epub. But it would be easier if Amazon didn't have to convert epub ...
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2answers
782 views

Occasional blank pages in ePub produced by calibre from Word document

I'm completely new to calibre and e-book creation in general. I've converted a large .docx file to ePub format. When I browse the result with the calibre e-book viewer there is sometimes a "blank page"...
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2answers
170 views

Calibre changes font coverting AZW book to EPUB

I'm trying to convert an azw book to epub. Calibre completes the conversion with no problem, but the font has changed (to something ugly). I know I can use the look and feel settings to fix this, but ...
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1answer
80 views

Create ePUB in Calibre without Document Outline?

I have a book that's made up of a bunch of .tif images. I have all the individual .tif files, and a pdf with them all put together. I'm trying to make a .epub file for the book. When I try to ...
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1answer
14 views

JPG continues to appear in subsequent pages

I have tables I converted to jpg inserted into the MS Word file of a book to be published. After converting to epub with Calibre, I noticed the jpgs continue to show in the background in pages after ...
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14 views

Calibre rewriting endnote back links

Calibre 4.13 I set up endnote links in an epub such that the endnote text has a back link pointing back to the source text. Like so: <a id="src-a1-1" href="#en-a1-1"> However, Calibre has ...
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1answer
238 views

How do you make paragraphs break in iBooks or Nook?

I have just finished the long and arduous task of typesetting a book using quarkXpress2015. While everything is beautiful on-screen and as a PDF, things get ugly when exporting as ePub for ebooks. I'...
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1answer
516 views

How do I direct links in popup-footnotes directly to main text?

Using calibre and epub3 I'm using popup footnotes (with epub:type). In some of the footnotes I present links (ex. a link to Chapter 2) to the main text. This referred text should not be presented in ...
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3answers
4k views

How to effectively manage ebooks using Calibre?

I started using Calibre and I'm unable to decide how to effectively use it to manage my ebooks. I've a huge collection of ebooks organized by subject into folders like Political Science, History - ...
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24 views

How to send a long web page to a Kindle device?

What's the simplest solution to send a long web page to a Kindle device? Normally I use five filters, but it sometimes barfs. In this case I'm guessing it's simply the size of the page. I'm ...
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21 views

Add new format of a book to calibre from command line

There are some books with mobi and azw3 formats on my calibre library which I want to convert them to epub and I prefer to do it from command line. I'm able to convert books using ebook-convert but ...
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1answer
218 views

Can I force Calibre flow mode to ignore page breaks and never skip pages like paginated mode?

Is there a way to force Calibre to scroll content like a regular web page, instead of scroll normally till the bottom of a page comes up, then skip the whole screen to the next page, then skip to the ...
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1answer
269 views

How to convert epub/mobi to PDF without image distortion?

I've used Calibre to convert Mobi/Epub to PDF. The overall output is good, however, the image is always not in good shape. For example, How image shows in Kindle reader (Android app) How image shows ...
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1answer
68 views

JPG loses quality during ePUB to PDF conversion with calibre

I have a ePUB with a bunch of formulas as JPG files. In the ePUB they are super crisp, but during ePUB to PDF conversion with calibre all the images become blurry, I'd imagine they are JPG compressed. ...
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1answer
101 views

Is it posible to compact calibre library?

Haven't found any archiving functionality in Calibre by myself, so assuming it doesn't exist. I am right? How can I shrink the library size using Calibre without changing a books format?
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30 views

Convert math-heavy epub to mobi?

I have an epub with a lot of equations, and these get garbled when converted to mobi using calibre. (E.g., “=“ gets dropped off in the mobi version.) They also become rather small images. (I’d prefer ...
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1answer
1k views

How can I keep a large number of EPUB files, managed in calibre, “polished”

As described in this answer, you can manually polish EPUB files so they are updated with the metadata you added or changed in calibre, without converting the EPUB files. At least on Linux there is a ...
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0answers
18 views

How to convert a batch of gif URLS to epub?

I have the pages of a book in the form of over 400 gif URLS. How can I most easily convert into epub format? Thanks!
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1answer
109 views

Adding a language that Calibre does not recognize

I want to add languages that Calibre does not have in its database, such as Farsi (an alias for "Persian") and Hindavi (the precursor to Urdu and Hindi), so that I can use those languages in the ...
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2answers
153 views

ebook-edit in calibre automation with python

I want to write a python automation program for merge html files in a epub using ebook-edit(in MacOS sub directory) in calibre. I know how to do it manually but I want to it many epub files ...
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2answers
38 views

Fix broken eBook Table of Contents?

The Table of Contents of this .ePub file seems to incorrectly link to one page previous to the desired page. For instance if 'Part 2' is clicked, it directs to the last page of 'Part 1'. I have looked ...
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91 views

Epub edited in Calibre shows no mistakes but IceCream Ebook Reader show me mistakes

I am editing a book with Calibre and it seems perfect with Calibre reader, but when I save it and I open the epub using IceCream it shows me mistakes, I trying to discover why. Any comments? Thank you!...
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37 views

Is it possible (and how do I do it) to set up my Kindle to talk to Calibre over Wifi, instead of talking to Amazon?

I have a Kindle Paperwhite. I also have Calibre, and a goodly number of DRM free ebooks that have nothing to do with Amazon. I'd like to be able to transfer these to the Kindle without the hassle of ...
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7answers
22k views

How can I reduce the resolution of images in an epub or mobi file?

Some of the last O'Reilly ebooks I got have become really large (e.g. 60MB for the mobi version and 5.5MB for the epub version) - and these are computer science text books (not art books). The ...
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1answer
11k views

Kindle doesn't show cover

I just got a kindle as Christmas present. I got myself calibre and loaded 4 E-Books on my kindle. I can open and read every book, but unfortunately I just can see the covers of 2 of these 4 E-Books ...
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1answer
94 views

Calibre: Difference between “Date” and “Published”

When editing the metadata of a book on Calibre, there are two fields that seem to have the same meaning: "Date" and "Published". What's the difference between the two?
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2answers
215 views

convert mobi to epub

Can somebody help me convert this mobi file into a different format, such as pdf/epub? I've tried both online services and software, but it fails and even freezes in readers as the file is too many ...
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0answers
47 views

Syncing highlights made on kindle with kindle for Mac

I have a Kindle Paperwhite, on which I've transferred books from my Mac using calibre. While reading on my kindle, I've made some notes and highlights. How do I go about syncing these highlights and ...
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91 views

how to use “create a book” from wikibooks?

I only see: Print/export Create a collection Download as PDF Printable version whereas I'm looking for: The wikibooks documentation is certainly thorough: Formats How to convert to popular ...
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9answers
22k views

Are there any WYSIWYG editors for EPUB books?

I am looking for an easy to use editor that provides a WYSIWYG (“What You See Is What You Get”) interface. I know that you can import a Microsoft Word document into Calibre, but I would prefer to be ...
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0answers
63 views

iOS app to read books from Calibre library store in iCloud drive

I'm looking for an app (or apps), which can access and use Calibre library, stored in iCloud. It was pretty easy to set up Calibre on both macOS and Windows to simply load the library from a ...
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2answers
158 views

how to convert markdown with sub-markdowns to ebook

main.md contain sub-mds: main.md 1. [1 - ](1.md) 1. [2 - ](2.md) 1. [3 - ](3.md) 1. [4 - ](4.md) 1. [5 - ](5.md) 1. [6 - ](6.md) I use calibre command: ebook-convert main.md main.epub But only ...
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9 views

Calibre: suppress message that is displayed when opening to Full Screen

When opening to full screen, Calibre displays a splash with instructions. I have been using Calibre long enough that I don't need to see this message. Is there any way to suppress this?
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7 views

log of e-books sent via e-mail from Calibre

Where can I find or generate Calibre logs for converted books and sent e-mails? I see a pop-up for success/failure, which is good, but...sometimes the send fails. Almost always re-sending the mobi ...
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92 views

Export annotations from (non Amazon) book on kindle

I imported a manuscript (not published by Amazon, or anyone else, at least yet) into my Kindle and used the annotation feature to note down corrections to be made. I would now like to send the ...
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0answers
14 views

Selective substrings in TOC - calibre

I have 100 HTML files with a structure like this: <div id="message-1">14 April 2015</div> <div id="message-2">16 April 2015</div> <div id="message-3">1 June 2015</div&...
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1answer
2k views

Reading annotations in Calibre

I have installed the Annotations plugin for Calibre. I have added an annotated ebook from my Kobo Aura H2O device to my Calibre library. Then I imported annotations from the device and Calibre said ...
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1answer
27 views

How to show all the books under a tag and its subtags?

Calibre has a feature that lets you create subtags. See "Making subgroups of tags" in the official blog post. Now to actually get hierarchical tags, in the tags section of the metadata entry enter ...