---
name: "mobimeta"
section: "1"
platform: "linux"
package: "libmobi-tools"
version: "0.12+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mobimeta"
---

# mobimeta(1)

Utility for modifying metadata of MOBI format ebook files.

## NAME

**mobimeta** – Utility for modifying metadata of MOBI format ebook files.

## SYNOPSIS

**mobimeta** \[**-a** *meta*=*value*\[,*meta*=*value*,*...*\]\] \[**-d** *meta*\[,*meta*,*...*\]\] \[**-s** *meta*=*value*\[,*meta*=*value*,*...*\]\] \[**-p** *pid*\] \[**-P** *serial*\] \[**-hv**\] *filein* \[*fileout*\]

## DESCRIPTION

The program handles .prc, .mobi, .azw, .azw3, .azw4, some .pdb documents. It is powered by **libmobi** library.

Invoked without arguments prints document metadata and exits. If *fileout* is specified, modified document will be saved with this name, otherwise original input *filein* will be modified.

A list of flags and their descriptions:

- **-a** *meta*=*value*\[,*meta*=*value*,*...*\]

  add (append) metadata

- **-d** *meta*\[,*meta*,*...*\]

  delete metadata

- **-s** *meta*=*value*\[,*meta*=*value*,*...*\]

  set (replace) metadata

- *meta*

  for a list of valid named meta keys try **mobimeta** {**-a** \| **-d** \| **-s**} *?*. If meta is an integer it will be treated as a numeric EXTH record key (expert usage).

- *value*

  new value that will be set for a given meta key

- **-p** *pid*

  set pid for decryption

- **-P** *serial*

  set device serial number for decryption

- **-h**

  show usage summary and exit

- **-v**

  show version and exit

## EXAMPLES

The following command will set new title, new author and will delete all publisher metadata (if any).

```
% mobimeta -s title="My title",author="My name" -d publisher example.mobi
```

The following command appends EXTH record identified by its numeric key 204 with numeric value 201.

```
% mobimeta -a 204=201 example.mobi
```

The following command will list valid meta named keys.

```
% mobimeta -a ?
```

Or in case your shell expands quotation mark:

```
% mobimeta -a "?"
```

## RETURN VALUES

The **mobimeta** utility returns 0 on success, 1 on error.

## COPYRIGHT

Copyright (C) 2014-2022 Bartek Fabiszewski.

Released under LGPL version 3 or any later (same as**libmobi** ).

## WEB SITE

Visit http://www.fabiszewski.net for details.

## DIAGNOSTICS

For diagnostics **libmobi** must be configured with **-****-enable-debug** option.

## SEE ALSO

[mobitool(1)](/mobitool/1.md) [mobidrm(1)](/mobidrm/1.md)