# Installer leptonica avec Homebrew, apk, dnf, MacPorts, Nix, pacman, zypper

Consultez les chemins d'installation, exécutables, métadonnées et notes de sécurité de leptonica pour les workflows d'agents IA.

## installation

```sh
sudo av install brew:leptonica
```

Commandes d'installation supplémentaires:

### macOS

- Homebrew (100%):

```sh
brew install leptonica
```

  Preuve: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install leptonica
```

  Preuve: MacPorts ports tree: graphics/leptonica/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- apk (92%):

```sh
sudo apk add leptonica
```

  Preuve: Alpine Linux edge package indexes: leptonica from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

- dnf (92%):

```sh
sudo dnf install leptonica
```

  Preuve: Fedora Rawhide package metadata: leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#leptonica
```

  Preuve: nixpkgs package indexes: pkgs/by-name/le/leptonica/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- pacman (92%):

```sh
sudo pacman -S leptonica
```

  Preuve: Arch Linux sync databases: leptonica from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

- zypper (92%):

```sh
sudo zypper install leptonica-devel
```

  Preuve: openSUSE Tumbleweed package metadata: leptonica-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst

## Faits du paquet

- **Clé du paquet:** brew:leptonica
- **Gestionnaire de paquets:** Homebrew
- **Version:** 1.87.0
- **Résumé source:** Image processing and image analysis library
- **Page d'accueil:** <http://www.leptonica.org/>
- **Dépôt:** <https://github.com/DanBloomberg/leptonica>
- **Généré:** 2026-08-03T19:37:03+00:00

## exécutables

- convertfilestopdf (alias)
- convertfilestops (alias)
- convertformat (alias)
- convertsegfilestopdf (alias)
- convertsegfilestops (alias)
- converttopdf (alias)
- converttops (alias)
- fileinfo (alias)
- imagetops (alias)
- xtractprotos (alias)

## Comportement d'installation

- Bouteille: non disponible

## Version et fraîcheur

- page générée: 2026-08-03
- version du gestionnaire: 1.87.0
## Historique du projet et usages

Leptonica is Dan Bloomberg's open source C library for image processing and image analysis, with especially deep coverage of document-image operations used by OCR and page-processing tools.

### Historique du projet

Leptonica's official README metadata dates the work to 2001 and describes it as an open source C library for efficient image processing and image analysis. The project site emphasizes a pedagogical style: the code is accompanied by web pages explaining algorithms and design methods.

The library grew into a broad C toolkit covering raster operations, affine and projective transforms, morphology, convolution, connected components, image format I/O, PDF and PostScript generation, document cleanup, skew detection, dewarping, barcode experiments, and many supporting data structures.

### Historique d'adoption

Leptonica became important infrastructure below OCR and document-image projects. Its README lists Tesseract OCR, OpenCV, and jbig2enc among open source projects that use it.

The project's packaging history reflects a classic C-library role: distributions ship the library, headers, command-line utilities, and example programs so higher-level tools can depend on a stable native image-processing base.

### Modes d'utilisation

Developers link against liblept and use the pix-centered API for reading, transforming, analyzing, and writing images. The package also includes command-line programs such as file conversion and PDF/PostScript helpers that expose common library workflows.

### Pourquoi les passionnés de paquets s'y intéressent

Leptonica is significant because it is one of those quiet dependency packages that makes OCR stacks work. It is small enough to feel like a C utility library, but large enough to cover thousands of image-processing functions and the boring portability details that downstream packages need.

### Chronologie

- 2001: Official metadata identifies Leptonica as an open source C library for image processing and image analysis.
- 2010s: Leptonica moved into GitHub-based maintenance, with contributors preserving old distributions and modernizing build support.
- 2024: Version 1.85.0 added PDF rendering support and many maintenance fixes.
- 2025: Version 1.87.0 was distributed on December 24, 2025.

### Related projects

- Tesseract OCR is a major downstream user.
- OpenCV and jbig2enc are listed by Leptonica as open source projects using the library.

### Sources

- <https://github.com/DanBloomberg/leptonica>
- <https://www.leptonica.org/>
- <https://www.leptonica.org/source/README.html>
- <https://www.leptonica.org/source/version-notes.html>


## Notes de sécurité

broad file, network, media, or database tool signal.

- **Risque Geiger:** blue / moyen
- broad file, network, media, or database tool signal

## Autres enregistrements de gestionnaires de paquets

- Nix - leptonica: normalized package name match | nixpkgs package indexes: pkgs/by-name/le/leptonica/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - leptonica - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications | http://www.leptonica.com/
- apk - leptonica-dev - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications (development files) | http://www.leptonica.com/
- apk - leptonica-doc - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications (documentation) | http://www.leptonica.com/
- dnf - leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | C library for efficient image processing and image analysis operations | https://github.com/danbloomberg/leptonica
- dnf - leptonica-devel - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Development files for leptonica | https://github.com/danbloomberg/leptonica
- dnf - leptonica-tools - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica-tools from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Leptonica utility tools | https://github.com/danbloomberg/leptonica
- dnf - mingw32-leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: mingw32-leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | MinGW Windows Leptonica library | https://github.com/danbloomberg/leptonica
- dnf - mingw64-leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: mingw64-leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | MinGW Windows Leptonica library | https://github.com/danbloomberg/leptonica
- pacman - leptonica - 1.87.0-1: normalized package name match | Arch Linux sync databases: leptonica from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Software that is broadly useful for image processing and image analysis applications | http://www.leptonica.com
- zypper - leptonica-devel - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: leptonica-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Leptonica Development Files | http://leptonica.org/
- zypper - leptonica-tools - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: leptonica-tools from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Leptonica tools | http://leptonica.org/
- zypper - libleptonica6 - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: libleptonica6 from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Library for image processing and image analysis applications | http://leptonica.org/
- MacPorts - leptonica: normalized package name match | MacPorts ports tree: graphics/leptonica/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Nix - fileinfo: installed executable or alias match | nixpkgs package indexes: pkgs/by-name/fi/fileinfo/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/leptonica.yml](https://github.com/mxcl/pkgdb/blob/main/combined/leptonica.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph