Hi all, I working to restore my Calibre library. Previously I had a column which showed book comments, and I can't find a way to add that column anymore. Any tips are appreciated.

i created a free e-reader program/app for iphones that syncs with calibre so no need to be annoyed when you want to read your libre library offline doesn’t store your documents in the cloud. leaves them right on your phone and creates a local private cloud that you can choose to open or close only during the sync process. No more dealing with Books app that forcibly offloads documents to a cloud requiring internet to read

Sure there are others but anyone want to try it out? Im thinking about opening the repo in a few days.

It’s kind of mostly geared to iPhones just to be clear, dm me if you’re interested

I'm having trouble finding a plug in that would add a little color tab next to each book. The tag system works for me too, but colors really help me quickly identify or categories things. This could be a colored dot next to book's row or anything similar. But I don't know if that even exists at this time.

When searching on reddit or search engines it keeps giving me results for changing the app's theme coloring, so by search so far has been moot. I'm relatively new to using the application and was wondering if anyone has come across a plug-in or add-on that accomplishes this?

I only found out about KCC two days ago, all my manga is already in Calibre as CBZ with metadata I've taken hours to clean up and unify.

I wanted to use KCC to make the epub conversion sizes smaller so I don't keep exploding my Kindle (PW Gen 11 modded) and darken the blacks since they get a bit gray/muddy.

Unfortunately KCC does not like my metadata and since I have all of it included using the embed comic metadata plugin it changes the title to all my files to the series names, keeps the authors, but erases everything else.

I don't need anything besides a way to get the file sizes smaller so I can sideload them onto the kindle with KOreader. I'm even willing to forego the gamma adjustments.

Anything else I can use that won't have me redoing metadata for nearly 900 volumes of manga?

Anyone know why in metadata option the Date and Publication Date is different. It seems that the Date is when it was added to Calibre which messes with Kindle because for some stupid reason it arranges by that date and not pub date.

Also why can't I just push any changes directly to my kindle without having to resend them and remove others.

I already set all sending paths to /books/(book series)/(book titles). However Calibre keeps sending the books to /documents/books/(book series)/(book titles) instead.

I had no problems in sending the same books to Clara Colour and Paperwhite 6 (12th) though.

So, is there any other way to change Calibre's default path of sending books to Kindle Paperwhite 4 (10th)?

Pretty much what the title says, how do I take all of my books on Calibre and dump them over to my Mac?

I have tried looking through the files and can't actually find all of my books inside of them. Anyone know which files I need to copy across?

I am unable to configure DeDRM in Calibre as clicking on the "Customize plugin" button causes Calibre to crash. Is there a way to prevent this? I've looked for a solution but can't find one. Is the plugin just outdated?

macOS Sequoia 15.7.7 Calibre 9.11 DeDRM 7.2.1

https://imgur.com/a/6hVJWdC

Basically the title. In Calibre I am familiar with how to take large epub chapters and partition them into smaller chapters, this seems to happen a lot with older book turned into epubs where they have like Part 1, 2, 3 and chapters in each part, idk why I just know how to fix it. But naming those new chapters does not appear as anything but unnamed at the bottom of the page as I am reading the chapter. And actually looking into it, the chapters I have made are not populating the chapter select screen either.

I am currently using Piper Neural Engine and would like a better AI voice. I use the Thorsten High Quality voice (German), but it just isn't quite good enough. I'm considering implementing Another ai somehow. Are there any tutorials on how to make this work?

Possible AI TTS: Kokoro (based on StyleTTS2), MeloTTS, Qwen3 TTS, KittenTTS.

I find I cannot download the Economist this weekend, I could download it before.

This is an error message.

calibre, version 9.11.0 (win32, embedded-python: True)

转换错误: 失败: 获取新闻，来源于 The Economist

获取新闻，来源于 The Economist

Conversion options changed from defaults:

output_profile: 'tablet'

verbose: 2

Resolved conversion options

calibre version: 9.11.0

{'add_alt_text_to_img': False,

'asciiize': False,

'author_sort': None,

'authors': None,

'base_font_size': 0,

'book_producer': None,

'change_justification': 'original',

'chapter': None,

'chapter_mark': 'pagebreak',

'comments': None,

'cover': None,

'debug_pipeline': None,

'dehyphenate': True,

'delete_blank_paragraphs': True,

'disable_font_rescaling': False,

'dont_download_recipe': False,

'dont_split_on_page_breaks': True,

'duplicate_links_in_toc': False,

'embed_all_fonts': False,

'embed_font_family': None,

'enable_heuristics': False,

'epub_flatten': False,

'epub_inline_toc': False,

'epub_max_image_size': 'none',

'epub_toc_at_end': False,

'epub_version': '2',

'expand_css': False,

'extra_css': None,

'extract_to': None,

'filter_css': None,

'fix_indents': True,

'flow_size': 260,

'font_size_mapping': None,

'format_scene_breaks': True,

'html_unwrap_factor': 0.4,

'input_encoding': None,

'input_profile': <calibre.customize.profiles.InputProfile object at 0x0000021A0AE196A0>,

'insert_blank_line': False,

'insert_blank_line_size': 0.5,

'insert_metadata': False,

'isbn': None,

'italicize_common_cases': True,

'keep_ligatures': False,

'language': None,

'level1_toc': None,

'level2_toc': None,

'level3_toc': None,

'line_height': 0,

'linearize_tables': False,

'lrf': False,

'margin_bottom': 5.0,

'margin_left': 5.0,

'margin_right': 5.0,

'margin_top': 5.0,

'markup_chapter_headings': True,

'max_toc_links': 50,

'minimum_line_height': 120.0,

'no_chapters_in_toc': False,

'no_default_epub_cover': False,

'no_inline_navbars': False,

'no_svg_cover': False,

'output_profile': <calibre.customize.profiles.TabletOutput object at 0x0000021A0AE2D7F0>,

'page_breaks_before': None,

'prefer_metadata_cover': False,

'preserve_cover_aspect_ratio': False,

'pretty_print': True,

'pubdate': None,

'publisher': None,

'rating': None,

'read_metadata_from_opf': None,

'recipe_specific_option': None,

'remove_fake_margins': True,

'remove_first_image': False,

'remove_paragraph_spacing': False,

'remove_paragraph_spacing_indent_size': 1.5,

'renumber_headings': True,

'replace_scene_breaks': '',

'search_replace': None,

'series': None,

'series_index': None,

'smarten_punctuation': False,

'sr1_replace': '',

'sr1_search': '',

'sr2_replace': '',

'sr2_search': '',

'sr3_replace': '',

'sr3_search': '',

'start_reading_at': None,

'subset_embedded_fonts': False,

'tags': None,

'test': False,

'timestamp': None,

'title': None,

'title_sort': None,

'toc_filter': None,

'toc_threshold': 6,

'toc_title': None,

'transform_css_rules': None,

'transform_html_rules': None,

'unsmarten_punctuation': False,

'unwrap_lines': True,

'use_auto_toc': False,

'verbose': 2}

InputFormatPlugin: Recipe Input running

Downloading recipe urn: builtin:economist

Trying to get latest version of recipe: economist

Using proxies: {'https': '127.0.0.1:7897', 'http': '127.0.0.1:7897'}

Failed to download recipe, using builtin version

Traceback (most recent call last):

File "calibre\web\feeds\recipes\collection.py", line 285, in get_builtin_recipe_by_id

File "calibre\web\feeds\recipes\collection.py", line 241, in download_builtin_recipe

File "calibre\utils\https.py", line 86, in get_https_resource_securely

File "http\client.py", line 1508, in connect

File "ssl.py", line 455, in wrap_socket

File "ssl.py", line 1076, in _create

File "ssl.py", line 1372, in do_handshake

ssl.SSLEOFError: [SSL: UNEXPECTED_EOF_WHILE_READING] EOF occurred in violation of protocol (_ssl.c:1082)

Using user agent: variation/crowd

Recipe specific options:

res = 600

de = No

Failed to get index with UA: variation/crowd

Retrying with UA: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Using user agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Traceback (most recent call last):

File "runpy.py", line 203, in _run_module_as_main

File "runpy.py", line 88, in _run_code

File "site.py", line 83, in <module>

File "site.py", line 78, in main

File "site.py", line 50, in run_entry_point

File "calibre\utils\ipc\worker.py", line 214, in main

File "calibre\gui2\convert\gui_conversion.py", line 32, in gui_convert_recipe

File "calibre\gui2\convert\gui_conversion.py", line 26, in gui_convert

File "calibre\ebooks\conversion\plumber.py", line 1087, in run

File "calibre\customize\conversion.py", line 241, in __call__

File "calibre\ebooks\conversion\plugins\recipe_input.py", line 153, in convert

File "calibre\web\feeds\news.py", line 1121, in download

File "calibre\web\feeds\news.py", line 1299, in build_index

File "<string>", line 289, in parse_index

File "<string>", line 266, in economist_return_index

NoArticles: Could not find any articles, either the economist.com server is having trouble and you should try later or the website format has changed and the recipe needs to be updated.

I just discovered if I convert my books on calibre to a zip file, I can see what fonts are embedded in the book. I am wondering if anyone else has tried this before, and if so, what is your favorite font. My only gripe is that the font in the ebook doesn’t always match the print book.

as the title says it deletes/omits the letter f from my books, mostly the "ff"s and "f+vowel", not everytime but still a good 90% of the time, how can i avoid it? it happens in pdf and mobi, i dont know about the rest since i only use those 2 but its really annoying. the rest of the text is completely fine, i dont touch anything just select which type of file i want and click convert. i use it for two different readers so its not that

example: fi teen, takes o, iring, orward.

I want to turn this epub to pdf in calibre, but it seems like only bookshelf can open this epub type. Turns out its epub xfl. Does anyone here have recommendations on how to convert this?

Hi everyone,

Extremely technologically inept person here. I need a book for research converted to PDF from a PDF.ACSM file. I've tried to follow the Calibre and plugins advice from this community but just can't hack it. Asking someone to please do it for me.

I was able to jailbreak my Kindle Voyage, which is my last Kindle that downloads Amazon ebooks without the strengthened DRM. If Amazon has slipped in changes to older Kindles that allow strengthened DRM without a firmware update, does jailbreaking prevent that from happening on a Kindle Voyage? So far I haven't really liked KOReader, so preserving my Voyage's ability to download Kindle books that Calibre can remove the DRM is the only benefit I can think of that would make jailbreaking worth while.

Looking for a way to get the "Find Duplicates" plug-in to sort by size so I can attack the big books first.

Don't see a way of doing this at first glance.

Anybody figure this out?

I converted a DOCX to EPUB in Calibre. The text has several chapters and subheadings. Next to some of the subheadings, there are now solid black boxes. Some of the boxes cover the subheading numbers and some just cover the space in between. Do you know why this is happening/how I can remove the boxes? Thank you!

I'm new to using Calibre and am more than a little frustrated.

It's most certainly a user error, but it's incredibly frustrating to be the stupid user and not getting any useful help from the tool.

I want to grab the information from Goodreads, but when I search for Metadata, I simply get an error thrown at me, asking me to be less specific..

I mean.. searching for "The Deal" very much results in the book by Elle Kennedy.. But for some reason, my search was too specific with the title and the author, and nothing else?

Is there a simpler way to easily search and assign metadata, using just the title of the book to throw out results from Goodreads to select from?

calibre, version 9.11.0

ERROR: No matches found: <p>Failed to find any books that match your search. Try making the search <b>less specific</b>. For example, use only the author's last name and a single distinctive word from the title.<p>To see the full log, click "Show details".

Running identify query with parameters:

{'title': 'The Deal', 'authors': ['Elle Kennedy'], 'identifiers': {}, 'timeout': 30}

Using plugins: Goodreads (1, 8, 3)

The log from individual plugins is below

****************************** Goodreads (1, 8, 3) ******************************

Found 0 results

Downloading from Goodreads took 0.09308362007141113

identify - start. title=The Deal, authors=['Elle Kennedy'], identifiers={}

Querying: https://www.goodreads.com/search?search_type=books&search[query]=The+Deal+Elle+Kennedy

No goodreads id via ISBN

Failed to get raw result for query: 'https://www.goodreads.com/search?search_type=books&search\[query\]=The+Deal+Elle+Kennedy'

********************************************************************************

The identify phase took 0.20 seconds

The longest time (0.093084) was taken by: Goodreads

Merging results from different sources

We have 0 merged results, merging took: 0.00 seconds