# Install leptonica with Homebrew, apk, dnf, MacPorts, Nix, pacman, zypper Image processing and image analysis library. Version 1.87.0 via Homebrew; verified from local package data. Also installable with nix: nix profile install nixpkgs#leptonica. ## Install ```sh sudo av install brew:leptonica ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install leptonica ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install leptonica ``` Evidence: 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 ``` Evidence: 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 ``` Evidence: Fedora Rawhide package metadata: leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#leptonica ``` Evidence: 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 ``` Evidence: 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 ``` Evidence: openSUSE Tumbleweed package metadata: leptonica-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst ## Package facts - **Package key:** brew:leptonica - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.87.0 - **Source summary:** Image processing and image analysis library - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** BSD-2-Clause - **Source archive:** - **Generated:** 2026-08-04T22:13:35+00:00 ## Executables - convertfilestopdf (cli) - convertfilestops (cli) - convertformat (cli) - convertsegfilestopdf (cli) - convertsegfilestops (cli) - converttopdf (cli) - converttops (cli) - fileinfo (cli) - imagetops (cli) - xtractprotos (cli) - convertfilestopdf (alias) - convertfilestops (alias) - convertformat (alias) - convertsegfilestopdf (alias) - convertsegfilestops (alias) - converttopdf (alias) - converttops (alias) - fileinfo (alias) - imagetops (alias) - xtractprotos (alias) ## Dependencies - giflib - jpeg-turbo - libpng - libtiff - openjpeg - webp ## Build dependencies - pkgconf ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-08-04 - Package-manager version: 1.87.0 - Local data: ok - Upstream repository: https://github.com/DanBloomberg/leptonica - info: No package-manager update timestamp was available. - info: No cached GitHub release or tag data was available. ## Project history and usage 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. ### Project history 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. ### Adoption history 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. ### How it is used 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. ### Why package nerds care 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. ### Timeline - 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 - - - - ## Security Notes broad file, network, media, or database tool signal. - **Geiger risk:** blue / medium - broad file, network, media, or database tool signal ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** leptonica - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - 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/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-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/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-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/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-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/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-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/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-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 ## Related links - [Secret-risk packages](https://pkg.so/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://pkg.so/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://pkg.so/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Media and graphics packages](https://pkg.so/media-graphics-tools/) - Matched media, image, audio, video, or graphics metadata. - [libpng](https://pkg.so/brew/libpng/) - Runtime dependency declared by Homebrew. - [jpeg-turbo](https://pkg.so/brew/jpeg-turbo/) - Runtime dependency declared by Homebrew. - [libtiff](https://pkg.so/brew/libtiff/) - Runtime dependency declared by Homebrew. - [giflib](https://pkg.so/brew/giflib/) - Runtime dependency declared by Homebrew. - [webp](https://pkg.so/brew/webp/) - Runtime dependency declared by Homebrew. - [openjpeg](https://pkg.so/brew/openjpeg/) - Runtime dependency declared by Homebrew. - [pkgconf](https://pkg.so/brew/pkgconf/) - Build dependency declared by Homebrew. - [tesseract](https://pkg.so/brew/tesseract/) - Popular package that depends on this formula. - [ghostscript](https://pkg.so/brew/ghostscript/) - Popular package that depends on this formula. - [mupdf](https://pkg.so/brew/mupdf/) - Popular package that depends on this formula. - [jbig2enc](https://pkg.so/brew/jbig2enc/) - Popular package that depends on this formula. - [netpbm](https://pkg.so/brew/netpbm/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [epsilon](https://pkg.so/brew/epsilon/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [gifsicle](https://pkg.so/brew/gifsicle/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [openimageio](https://pkg.so/brew/openimageio/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [nip4](https://pkg.so/brew/nip4/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [apngasm](https://pkg.so/brew/apngasm/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [libsail](https://pkg.so/brew/libsail/) - Shares pkgdb curated category or tags: cli, image-processing, media. - [imagemagick-full](https://pkg.so/brew/imagemagick-full/) - Both packages work with overlapping file formats or content types. Shared terms: cli, image, image-processing, jpeg, jpeg-turbo. ## 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 - package-page enrichment - curated package history - package version freshness - pkgdb category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph