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Sub-Forums : Calibre

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Conversion

Learn about calibre's conversion features and find help when conversion goes wrong

Python exceptions when PDF to...

by kovidgoyal

Yesterday 12:45 AM

5,835

35,587

Devices

Troubleshoot connection issues specific to your device, and learn how to make the most of calibre's device integration features

Error sending to kobo

by Dan__

12-04-2025 06:28 PM

4,483

30,897

Editor

Learn about calibre's Edit Book feature, capable of directly editing ePub and AZW3 formats and find help when problems with editing arise

Using a TOC to create Chapter...

by DNSB

Yesterday 06:04 PM

1,864

15,055

Library Management

All about viewing, adding, and exporting books; managing metadata; using templates; creating catalogs and understanding the calibre directory structure

Export Failed with...

by JupiterMoon

Yesterday 09:38 PM

10,475

70,780

Plugins

Use plugins to extend the functionality of calibre

[GUI Plugin] FanFicFare

by JimmXinu

Today 10:35 AM

941

72,662

Recipes

Post your calibre news download recipes, solutions and requests

Philosophy Now magazine...

by kovidgoyal

Yesterday 11:47 PM

3,992

19,914

Server

This is the place for all your questions about the calibre server feature.

Connecting calibredb to...

by Venia Legendi

11-14-2025 04:07 PM

664

3,495

Viewer

This is the place for all your questions about the calibre Viewer

Viewer not opening any ebooks

by jenrar

Yesterday 01:03 AM

587

4,081

Related Tools

Third party applications that integrate, or are used in conjunction, with calibre; servers, cloud, network, backup and others

Calibre Sync for Android &...

by pdurrant

12-06-2025 05:11 PM

476

7,234

Development

All about hacking on calibre. Discuss calibre's internal structures and API

I want to use VSCODE for...

by wan1967

12-05-2025 11:18 PM

1,061

7,923

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Threads in Forum : Calibre

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Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Dealing with Kindle ebooks in calibre ( 1 2 3 4 5 ... Last Page) odamizu (05-27-2024)	12-06-2025 08:32 PM by Japan Based	1,300	879,495
Sticky Color palettes ( 1 2 3 4 5) dunhill (03-06-2024)	11-01-2025 11:01 PM by dunhill	68	100,847
Sticky calibre friday preview releases ( 1 2 3 4 5 ... Last Page) chaley (03-08-2024)	10-11-2025 03:02 AM by ownedbycats	352	199,566
Sticky [Custom Covers] Blanks, Templates - get them, share them, help to modify and create ( 1 2 3 4 5 ... Last Page) MiniMouse (09-08-2013)	06-29-2025 09:05 PM by mifanathan	252	491,768
Sticky Link to new DRM tool version DNSB (07-13-2022)	07-13-2022 07:06 PM by DNSB	0	56,482
Sticky Video Tutorials kovidgoyal (01-26-2011)	01-26-2011 09:04 PM by kovidgoyal	0	158,313
Sticky New to calibre? Start Here kovidgoyal (01-26-2011)	01-26-2011 05:05 PM by kovidgoyal	0	181,146

Do builtin AI prompts need explict 'say I don't know' instruction? JimmXinu (12-06-2025)	Today 10:30 AM by JimmXinu	14	1,550
Resource issues on a Mac mini M4 dunhill (Yesterday)	Today 09:16 AM by kovidgoyal	4	536
Turn off/Block AI features ( 1 2 3 4 5) msr (12-05-2025)	Today 07:51 AM by Sirtel	65	8,112
Change the file extensions that Calibre thinks are books zje (12-07-2025)	Today 04:35 AM by zje	8	903
Updates that require a computer restart vs not required JohnnyBook (12-06-2025)	12-07-2025 03:18 PM by JohnnyBook	5	678
Tag browser and Tags Rellwood (11-28-2025)	12-07-2025 11:49 AM by Clem2605	1	988
Calibre taking 30+ minutes to start with 20K book library ( 1 2 3 4) Luna (11-23-2025)	12-06-2025 12:18 PM by Luna	52	5,156
New AI feature: What book to read next Leonatus (12-05-2025)	12-06-2025 11:11 AM by Leonatus	14	1,459
[Solved] Can't upgrade calibre shuvashish76 (12-06-2025)	12-06-2025 04:08 AM by shuvashish76	1	379
Calibre-AI with Ollama: TypeError:can only concatenate str (not "list") to str m.s (12-05-2025)	12-06-2025 03:21 AM by m.s	2	538
Why Does SHUTDOWN Take So Long?! ( 1 2) gxn1 (12-03-2025)	12-05-2025 09:52 PM by DNSB	18	1,948
attribute 'underlying_book_id dunhill (12-03-2025)	12-03-2025 12:34 PM by dunhill	2	633
Obok DeDRM doesn't work on some installs of Calibre for Linux tacosauce (11-23-2025)	12-02-2025 01:23 PM by Quoth	11	2,989
Calibre 3.48 & Kobo Libra Color Fortcon (12-01-2025)	12-01-2025 03:32 AM by DNSB	1	545
Bulk edit SVG ElMiko (11-30-2025)	11-30-2025 03:28 PM by BetterRed	3	1,164
Can't Launch Calibre Lewis_Mcc94 (11-06-2025)	11-29-2025 11:28 PM by BetterRed	6	1,940
Calibre doesn't close immediately ( 1 2) JollyRoger (11-26-2025)	11-26-2025 07:15 PM by JollyRoger	18	1,449
Can't launch unless I do as administrator ( 1 2) adriane7 (11-21-2025)	11-24-2025 07:24 AM by JSWolf	21	2,051
Can't launch Calibre adriane7 (11-20-2025)	11-23-2025 03:43 PM by theducks	4	1,418
Ver 8.15 - Comments Change case menu has dissapeared BetterRed (11-22-2025)	11-22-2025 10:59 PM by kovidgoyal	1	611
Similar Books mezme (11-22-2025)	11-22-2025 04:41 PM by theducks	1	684
Cannot Access CBR or CBZ Files Because of File Being Used by Another Process ( 1 2 3) calibreian (06-20-2025)	11-20-2025 10:37 PM by Jaws	31	11,330
recovering a very large Calibre library after system crash ( 1 2) lucask (11-18-2025)	11-20-2025 02:59 PM by JSWolf	21	2,312
first collumn Koosr1946 (11-20-2025)	11-20-2025 11:27 AM by Koosr1946	2	613
Author Sort ( 1 2) JeffGeorge (11-17-2025)	11-19-2025 02:32 AM by Terisa de morgan	26	2,205