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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

KFX to EPUB: "no supported...

by Chocky

Today 04:27 AM

5,829

35,539

Devices

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

Moved books on KOReader...

by PiperKev

Today 06:00 PM

4,475

30,819

Editor

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

Html tranform

by JSWolf

10-28-2025 01:34 PM

1,862

15,045

Library Management

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

error with importing calibre...

by kovidgoyal

Yesterday 10:56 PM

10,455

70,673

Plugins

Use plugins to extend the functionality of calibre

Can't Convert KFX-ZIP

by tomsem

Today 02:23 PM

934

72,451

Recipes

Post your calibre news download recipes, solutions and requests

The Guardian recipe issues

by csaavedra

Yesterday 01:47 PM

3,984

19,875

Server

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

Can't connect to Calibre

by theducks

11-02-2025 03:47 PM

663

3,492

Viewer

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

Preparing book for first read

by LordP

Today 09:00 AM

586

4,064

Related Tools

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

koreader, mac calibre --...

by sirgawain

11-07-2025 03:40 PM

476

7,229

Development

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

When developing a plugin, how...

by shizen

11-06-2025 05:19 PM

1,055

7,911

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Threads in Forum : Calibre

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Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Color palettes ( 1 2 3 4 5) dunhill (03-06-2024)	11-01-2025 11:01 PM by dunhill	68	95,583
Sticky Dealing with Kindle ebooks in calibre ( 1 2 3 4 5 ... Last Page) odamizu (05-27-2024)	10-24-2025 08:48 PM by Sats	1,283	846,611
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	194,166
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	486,902
Sticky Link to new DRM tool version DNSB (07-13-2022)	07-13-2022 07:06 PM by DNSB	0	54,816
Sticky Video Tutorials kovidgoyal (01-26-2011)	01-26-2011 09:04 PM by kovidgoyal	0	156,557
Sticky New to calibre? Start Here kovidgoyal (01-26-2011)	01-26-2011 05:05 PM by kovidgoyal	0	179,358

The program does not launch the interface. Frantishek (11-02-2025)	Today 03:17 PM by tnavarra	2	550
Problem with author directory mariaclaudia (11-07-2025)	Today 08:09 AM by mariaclaudia	12	1,703
Added a custom column for theme Graham44 (11-04-2025)	Yesterday 05:20 PM by Graham44	6	835
Can't Launch Calibre Lewis_Mcc94 (11-06-2025)	11-06-2025 11:32 PM by kovidgoyal	2	480
Calibre Library is Empty Josieb1 (11-06-2025)	11-06-2025 02:16 PM by Josieb1	2	265
Ask about Content Server feature AnnieQuinn (11-05-2025)	11-05-2025 11:50 PM by AnnieQuinn	2	347
How to merge two libraries in Calibre? MonicaOP (11-01-2025)	11-03-2025 05:19 AM by JSWolf	2	639
Calibre Default Conversion Options captainsensible (10-31-2025)	10-31-2025 05:18 PM by BetterRed	2	423
SQLError Message whenever I do anything. qprfan99 (03-21-2024)	10-30-2025 07:15 PM by _nut	13	2,179
Any real difference between using Calibre Portable and regular Calibre on a computer? ( 1 2) Rellwood (10-13-2025)	10-30-2025 10:23 AM by PeterT	16	3,442
question about audiobooks bulldogmo (10-29-2025)	10-30-2025 01:39 AM by bulldogmo	3	779
Embed Metada in PDF p0lrb3ar (10-28-2025)	10-29-2025 07:48 PM by p0lrb3ar	3	971
Issue Restoring Database from OPF p0lrb3ar (10-28-2025)	10-28-2025 08:32 PM by DNSB	2	603
Failed to Back Up Device Database enuddleyarbl (10-23-2025)	10-28-2025 04:18 PM by JSWolf	2	872
Apply cbz-style image processing to epub conversion? CavemanJoe (03-20-2025)	10-27-2025 12:36 PM by CavemanJoe	5	2,098
Need help to fix the unicode folder name problem linqison (10-24-2025)	10-25-2025 07:18 AM by Quoth	1	702
I need help Charliee1974 (10-24-2025)	10-24-2025 12:25 PM by kovidgoyal	1	664
Lost setting BetterRed (10-22-2025)	10-22-2025 11:49 PM by BetterRed	1	669
Full-text Query Syntax question ElMiko (10-20-2025)	10-20-2025 01:19 AM by ElMiko	3	705
Error code on starting calibre AlanWojnaroski (10-18-2025)	10-19-2025 12:04 PM by dunhill	3	1,095
Problems downloading Calibre v. 8.13.0 Leonatus (10-17-2025)	10-17-2025 10:29 AM by Leonatus	10	1,253
Migration to new computer pavelk (09-12-2025)	10-17-2025 04:27 AM by dewd	13	8,875
Calibre won't open my ebooks Perplexed1 (10-16-2025)	10-16-2025 04:01 AM by Perplexed1	0	866
AZW files turning into MOBI by DeDRM rdm315 (10-11-2025)	10-11-2025 06:28 PM by rdm315	3	1,432
Error cailbre 8.11.1 calibre-debug --gui Mint 22.2 ( 1 2) gbm (09-27-2025)	10-10-2025 08:54 PM by dunhill	16	5,537