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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

Kepub Conversion Issue

by JSWolf

03-10-2026 05:40 PM

5,855

35,732

Devices

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

Space not highlighted before...

by Kriemfield

Today 08:58 AM

4,504

30,997

Editor

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

Focus

by BetterRed

03-10-2026 07:28 PM

1,884

15,217

Library Management

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

Create a book catalog of...

by Sirtel

Today 05:55 AM

10,565

71,350

Plugins

Use plugins to extend the functionality of calibre

[FileType Plugin] ACSM input...

by JSWolf

Today 08:34 AM

972

74,062

Recipes

Post your calibre news download recipes, solutions and requests

News Fetch naming

by kovidgoyal

03-10-2026 10:48 PM

4,013

20,027

Server

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

Server setup questions

by theducks

Yesterday 01:39 PM

673

3,534

Viewer

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

Viewer bug: always open on a...

by kovidgoyal

Today 08:32 AM

606

4,224

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 nephtys59

Yesterday 08:16 AM

484

7,402

Development

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

Annotations: HTML Output &...

by yogat3ch

03-08-2026 06:22 PM

1,068

8,047

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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)	03-11-2026 11:11 AM by bustacap	1,385	1,074,837
Sticky Color palettes ( 1 2 3 4 5) dunhill (03-06-2024)	03-05-2026 08:22 PM by artistkinda	72	169,723
Sticky calibre friday preview releases ( 1 2 3 4 5 ... Last Page) chaley (03-08-2024)	10-11-2025 02:02 AM by ownedbycats	352	275,914
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 08:05 PM by mifanathan	252	565,129
Sticky Link to new DRM tool version DNSB (07-13-2022)	07-13-2022 06:06 PM by DNSB	0	76,718
Sticky Video Tutorials kovidgoyal (01-26-2011)	01-26-2011 08:04 PM by kovidgoyal	0	178,922
Sticky New to calibre? Start Here kovidgoyal (01-26-2011)	01-26-2011 04:05 PM by kovidgoyal	0	202,165

What's New for 9.5 missing on website JSWolf (Yesterday)	Today 08:40 AM by JSWolf	14	2,716
Searches for specific font Badas (03-12-2026)	Yesterday 07:20 PM by theducks	4	2,938
Can't upgrade version Weniki (03-11-2026)	Yesterday 03:25 PM by Weniki	6	3,160
Why is the Calibre subreddit full of bad advice? ownedbycats (03-12-2026)	Yesterday 02:23 AM by Mr_H_Poirot	4	2,399
Question about Linux app ( 1 2 3) Lavender (02-28-2026)	03-12-2026 04:12 PM by Mr_H_Poirot	35	19,328
Calibre 9.4.0 crashes on macOS 26.3.1 when adding existing library sempaisan (03-12-2026)	03-12-2026 06:55 AM by kovidgoyal	1	1,157
Setting Output formats Rellwood (03-11-2026)	03-11-2026 11:17 PM by Sirtel	1	1,696
lag rsrupert (03-11-2026)	03-11-2026 05:39 PM by DiapDealer	3	1,976
Replace Most, But Not All, Books on My Kobo ( 1 2) koberulz (03-05-2026)	03-11-2026 08:04 AM by Readirect	16	11,668
Author Problem DGB (03-08-2026)	03-08-2026 10:41 AM by theducks	1	2,512
Recent versions of calibre run like a dog on my laptop Cactus Chef (03-04-2026)	03-06-2026 10:07 AM by gbm	12	7,823
Where is the new page count stored / can it be a column? Mister L (03-04-2026)	03-05-2026 04:54 PM by Mister L	10	7,503
Windows: Libraries and jumplists ownedbycats (03-01-2026)	03-02-2026 10:15 AM by ownedbycats	6	4,770
Question about the new Bookshelf view in Calibre 9 and the Pages database field MCBastos (01-31-2026)	03-02-2026 12:00 AM by MCBastos	9	12,238
How to "re-dock" editing windows? Skydog (05-17-2021)	03-01-2026 08:39 AM by DiapDealer	4	4,392
Remove Email Recipient HogDrvr (02-28-2026)	02-28-2026 03:40 PM by HogDrvr	0	3,458
Bug in New Page Counting - All books listed as Error ( 1 2) msr (02-22-2026)	02-28-2026 01:32 PM by Capricorn	16	11,594
OpenSSL Error Starting Cailbre ( 1 2) JeffGeorge (02-25-2026)	02-27-2026 03:38 PM by JSWolf	16	8,441
Does anybody use a split book list? ownedbycats (02-26-2026)	02-27-2026 01:24 PM by Wiggo	3	4,844
Icon pack mode switching query dunhill (02-26-2026)	02-27-2026 11:03 AM by dunhill	2	4,724
Reading Statistics ownedbycats (02-27-2026)	02-27-2026 02:18 AM by kovidgoyal	3	4,382
Bug in author sort ( 1 2) JSWolf (02-21-2026)	02-26-2026 11:41 PM by ableal	15	11,150
Is this a bug? (search and replace... replace fails) wjBLqf-_9 (02-26-2026)	02-26-2026 09:56 PM by Karellen	1	4,188
Poll How many books in your library? ( 1 2 3 4) Mr_H_Poirot (02-14-2026)	02-26-2026 10:28 AM by QuietShelfLife	47	31,020
Calibre 9.3.1 incorrectly reports database is corrupted Boilerplate4U (02-26-2026)	02-26-2026 09:13 AM by Boilerplate4U	1	4,680