I use the page count plugin plus a template program I adapted from one found online (included below) to build a column that categorizes books by length. (I use this to build collections I use when I’m picking my next to read)

I’d like to exclude certain books from getting a classification though if they are PDFs or have tags like “Graphic Novel” or “Cookbook”. I’d appreciate any help figuring this out.

program:
val = field('#pagecount');
first_non_empty(
	cmp(val, 0, ' ', '', ''),
	cmp(val, 15, 'Flash Fiction', '', ''),
	cmp(val, 50, 'Short Story', '', ''),
	cmp(val, 100, 'Novelette', '', ''),
	cmp(val, 250, 'Novella', '', ''),
	cmp(val, 500, 'Short Novel', '', ''),
	cmp(val, 750, 'Long Novel', '', ''),	
	cmp(val, 1000, 'Tome', '', ''),
	'Toe Breaker');

I frequently use Calibre to convert academic papers from PDF to epub, so I can read them on my tablet. But the conversion often results in weird formatting artifacts.

I'm aware that in the Conversion tool, there's a Search & Replace section, where I can list various expressions that will help me remove things like page numbers. This post has some helpful expressions for that. For example:

\d+<br>\n|\d+\w<br>\n|\w\d+<br>\n

Does anyone have a list of more expressions that they use when converting academic papers from PDF to epub? Especially any good expressions for handling footnotes?? I would love to get a bunch together, save them, and then simply load them every time I have to do this.

Thanks all!

A bit of a long shot, but I guess it doesn't hurt asking.

I'm using Calibre with the library on a network share (I'm aware this is not recommended, however I'm using this for years without any problems on Windows and Mac OS). Recently I gave Linux another shot and I stumbled upon a problem with accessing my network share.

When trying to add this library which is sitting on the network share, the Calibre file explorer doesn't show the network locations I added in Dolphin in the "Remote" tab. Is there any way to convince Calibre to find these network locations without adding the shares in /etc/fstab?

Edited meta in Calibre doesn't stick with the epub file. Is there any method to edit dc: meta in epub and the designated series under series shows up in Calibre?

Thanks and trying my best to explain the concept. If this is to vague please provide guide to explain more specific.

New features

• PDF Output: Add an option to discard the book cover instead of inserting it as the first page of the PDF
• Content server: Allow opening the book details page for a matches book from the Full text search results page

Bug fixes

• Windows: Fix empty data folder getting created in directory calibre is launched from when changing title/author for a book with an existing data folder
• LIT Output: Fix error converting anything to LIT on Windows
• Ignore failures to expire old trash during startup
• Amazon metadata download: Fix retrieval of publisher information from amazon.fr

New news sources

• ThePressProject by Sotiris Papatheodorou

Improved news sources

• Guardian & Observer
• Washington Post
• Private Eye
• Associated Press

Source: link

I have my calibre synced from pc to Nextcloud and use the android app to link them together.

I mostly read reference books - recipes, photography, history - so I don't need, or have the space to keep the books on my mobile phone.

This works great however, what I'd really like to do is read my books without having to download them first.

I guess I'm looking for a lazy approach to reading my reference books without storing them all on my phone.

Anyone have any different approaches that I can learn from?

Hi! Does anybody know how to change the format of the dates to YYYY-MM-DD?

Thanks!

I have 3 different libraries, one for comics, one for TTRPG books, and my main one for actual eBooks. My main library is over 4GB with over 1,000 books.

No, I haven't read all of them, but I am working on it. They have been collected over the last 15 years from Sony eReader store, Kobo books, Amazon Kindle, B&N, Archive.org and other Public Domain books hosts, Humble Bundle, Story Bundle, and various other places.

Largest categories are Sci-Fi, Fantasy, and Mystery.

I wish there was a way to link to an Android app.

This community is meant for discussion about the open source ebook management software Calibre. Technical questions and feature discussions about calibre are welcome.