25
votes
How can I reduce the resolution of images in an epub or mobi file?
Calibre already offers this functionality without any plugin. It's part of the ebook editor that installs with Calibre.
The editor will only edit files in the epub or azw3 format though. You can ...
- 351
18
votes
Trouble hooking up Goodreads with sideloaded ebook on Kindle Paperwhite
I have found the best way to get it 100 percent working is this:
If your book is not already in AZW3 format then convert it. (Has to be AZW3 and not just AZW.)
Secondly, highlight the book and edit ...
- 181
10
votes
Accepted
How do I prevent Calibre from modifying EPUB files when I read them?
I hadn't looked before so I did a little investigating. With Calibre 4.23 on Linux, I found that it's not exactly Calibre, it's the Reader.
I don't know why this Reader (it's a newly re-written reader,...
- 271
9
votes
Accepted
Calibre ignoring font settings?
If the ebook contains some definitions about the fonts to use, it takes the precedence over the default Calibre settings.
Maybe the ebook you are reading has some CSS rules that define the default ...
- 6,156
7
votes
Calibre ignoring font settings?
Some EPUBs may have font information specified directly as inline CSS. It will have preference over more generic options. In that case you can convert eBook and strip font-related styling:
- 171
7
votes
Calibre ignoring font settings?
The most canonical way to set styles globally is to set them in the Styles section.
The basic set of styles for changing fonts are simply:
body {
font-family: Crimson;
}
h1, h2, h3, h4, h5, h6 {
color:...
- 181
7
votes
Accepted
Ebooks file naming scheme -- Books in a series
If you are using Calibre, its database is already set to have each piece of information about a book in its proper field (i.e., there will be a field for the title, another for the author, another one ...
- 6,156
5
votes
Accepted
How to effectively manage ebooks using Calibre?
Calibre organises the books that way, there isn't much you can do about it. If you want to use it, you must accept that folder structure.
Anyway, books are better categorised by using tags and other ...
- 6,156
5
votes
How to effectively manage ebooks using Calibre?
As written in the Calibre manual you should use tags:
But suppose you want to find all unread science fiction books. There’s no easy way to do this with this folder scheme, [...] In calibre, you ...
5
votes
Calibre: Author with the word "and" in the name?
You can change default behaviour in Preferences/Tweaks:
# Splitting multiple author names
The default setting is:
authors_split_regex = ',?\s+(and|with)\s+'
When you clear that, Calibre won't split ...
- 151
5
votes
Accepted
Can I only transfer files to my Kindle Paperwhite using the cable that shipped with the device?
Additionally, there are some USB cables that are with charge-only feature. They have less pins, usually a lot cheaper or come with devices that are not made for a pc-device storage connection. For ...
5
votes
Accepted
How can I reduce the resolution of images in an epub or mobi file?
I had a similar situation: a 134 MB .mobi that I wanted to shrink.
Here's how I reduced the file size to 26 MB. The key to this approach is that an .epub is actually just a zipped web page with ...
- 66
5
votes
How can I reduce the resolution of images in an epub or mobi file?
Note: I intended to leave this as a comment for @mosh but didn't have the necessary rep. This is my own personal solution based on the solution he outlined. This will recursively scan a specified ...
4
votes
Can I create my own ebook cloud with Calibre?
Alternatively, if you have a server available, with PHP, you can install COPS (https://github.com/seblucas/cops/releases) on the server, and use rsync to regularly copy your entire Calibre directory ...
- 492
4
votes
Trouble hooking up Goodreads with sideloaded ebook on Kindle Paperwhite
Here is a simplified solution for you.
• Add your book to Calibre
• Convert it to .azw3
• Download metadata for the right version
• Make sure in the "ids" box you have the id from amazon.com (as ...
- 41
4
votes
Calibre to Kindle Book Transfer
Increasing font size and spacing is a frequent problem for PDFs, especially for tablets that are 6 inch. PDFs are supposed to be printable documents, and so font size and other things tend to be fixed ...
- 4,574
4
votes
How to sort on books that aren't in a specific format in calibre
I'm surprised nobody has responded in six months, sorry I haven't been here :-(
I do this all the time.
You want to convert everything that has formats:"=PDF" and doesn't have formats:"=MOBI". ...
- 492
4
votes
How can I reduce the resolution of images in an epub or mobi file?
bash script to for bulk compressing images in big.epub to small.epub on Windows7 or Linux.
You need to install cygwin on windows for (bash, unzip, zip, find, imagemagick).
#!/usr/bin/bash
USAGE="...
- 141
4
votes
Can a custom column with "Date" type be added to the tag browser?
Yes, you can accomplish that using SubGroups in Calibre. The way to do a subgroup is described here (for user entered Genres) but I'll do the TL;DR below for how to do it with publication dates: https:...
- 141
4
votes
Accepted
How to change text alignment with Calibre book editor
You can use a CSS style to apply this formatting to all your text:
body {
text-align: left;
}
This rule will be applied to all your text, so it will affect both regular paragraphs (<p> and ...
- 6,156
4
votes
Accepted
How Does Amazon Kindle Renting work on *buntu/Linux Systems?
Perhaps renting works differently from buying/lending/borrowing ebooks, but all you do is to download the Kindle reading app on your device. Then, the rented item will magically appear after you ...
- 4,574
3
votes
Can I create my own ebook cloud with Calibre?
You can definitely create your own eBook library by combining Calibre with other solutions to ensure your books, highlights and comments are reliably accessible online which would require a lot of ...
- 158
3
votes
How to automatically hyphenate before sending to a device?
Hyphenating a text that is not in a fixed presentation (page shape, or
ratio page size/ font size) makes little sense as the words may change
position on a line. Hence, I am assuming that what you ...
- 1,202
3
votes
Are there any WYSIWYG editors for EPUB books?
I have never tried this...but have heard good things about Scrivener
What differentiates from other products here are the productivity tools for writers:
outlining
story boarding
stores text snips
...
- 185
3
votes
Clean up converted ebook
In Calibre you can play around Heuristic Processing option while converting your files.
- 129
Only top scored, non community-wiki answers of a minimum length are eligible