macOS
Homebrewverifiziert · 100%
brew install jbig2enclocal Homebrew formula metadata
MacPortsverifiziert · 94%
sudo port install jbig2encMacPorts ports tree · graphics/jbig2enc/Portfile · Quelle: api.github.com
brew
jbig2enc mit Homebrew, apk, MacPorts, Nix, apt installieren
Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für jbig2enc in AI-Agent-Workflows.
Installation
Weitere Installationsbefehle
Linux
Alpine Linux apkverifiziert · 92%
sudo apk add jbig2encAlpine Linux edge package indexes · jbig2enc · Quelle: dl-cdn.alpinelinux.org
Nixverifiziert · 92%
nix profile install nixpkgs#jbig2encnixpkgs package indexes · pkgs/by-name/jb/jbig2enc/package.nix · Quelle: api.github.com
Debian aptverifiziert · 92%
sudo apt install jbig2Debian stable package indexes · jbig2 · Quelle: deb.debian.org
Überblick
Paketzusammenfassung
JBIG2 encoder (for monochrome documents)
Projektlinks
Befehle und Aliase
- jbig2
- jbig2topdf.py
Verlauf
Projektgeschichte und Nutzung
jbig2enc is a command-line JBIG2 encoder for monochrome document images. Its README describes JBIG2 as a bi-level image format that can outperform Group 4 fax compression and says the tool can generate JBIG2 streams, fragments for embedding in PDFs, symbol extraction and classification, refinement coding, and multipage document compression.
Projektgeschichte
The public GitHub repository was created in 2009, and the bundled ChangeLog records releases as early as the 0.21-era work on PDF output and old-book scans. The project grew around Leptonica integration, with repeated releases updating Leptonica compatibility, Windows build support, autotools, CMake, Meson, and the helper script later named jbig2topdf.py.
Adoptionsgeschichte
Homebrew packages the executable as jbig2enc, while Debian and Ubuntu expose the related command through a jbig2 package name. OCRmyPDF documentation treats a JBIG2 encoder as an optional but recommended component for smaller OCR-produced PDFs, which is one of the main reasons the encoder matters in Unix packaging even though the upstream project is small.
Wie es verwendet wird
Typical usage is document-pipeline work: encode scanned bilevel images with jbig2, then use jbig2topdf.py to wrap the JBIG2 output into a PDF. The README also documents standalone .jb2 output and sample commands for multi-image PDF creation.
Warum Paket-Nerds sich dafür interessieren
jbig2enc sits at an awkward packaging boundary: it is a tiny specialist encoder, but it unlocks much smaller scanned-document PDFs for tools higher in the stack. Packagers also care about its history because JBIG2 patent concerns long affected distribution decisions, while later releases focused on build-system portability and memory-safety fixes.
Zeitleiste
- 2009: Public GitHub repository created and version 0.27 recorded with Leptonica 1.58 support.
- 2012: Version 0.28 added autotools support, a Visual C++ solution, version reporting, and PDF DPI fixes.
- 2017: Version 0.29 fixed builds with Leptonica 1.70 and adjusted reference counting.
- 2024: Version 0.30 moved PDF helper support to Python 3, added CMake, standalone .jb2 support, DPI options, and ARM endian fixes.
- 2026: Versions 0.31 and 0.32 added build-system work, CI improvements, argument checks, C++17 requirements, and memory-leak fixes.
Related projects
- The README names Leptonica as a required imaging library and links related jbig2enc sample and minidjvu projects. In package-manager use it is often encountered through OCRmyPDF and other scanned-document workflows.
Quellen
Sicherheitslage
Risikostufe: grün
narrow executable package without higher-risk signals.
Risikoklassifikator
grün Risiko · niedrig Konfidenz · appliance
Warum
- narrow executable package without higher-risk signals
Signale
- metadata:no-higher-risk-signals
Installationsverhalten
- In den Formelmetadaten ist kein Homebrew-Post-install-Hook erfasst.
- Homebrew-Bottle-Metadaten sind für 6 Plattformziele verfügbar.
- Installiert mit 6 Laufzeitabhängigkeiten.
- Build-Metadaten listen 4 Build-Abhängigkeiten.
Empfohlene Prüfung
Prüfe vor unbeaufsichtigter Agent-Nutzung, ob das Tool Klartext-Credentials liest, Remote-Zustand schreibt, Artefakte veröffentlicht oder Plugins ausführt.
Executables
Installierte Executables
| Befehl | Art | Sichtbarkeit | Hinweis |
|---|---|---|---|
jbig2 | cli | globales Executable | |
jbig2topdf.py | cli | globales Executable |
Aktualität
Version und Aktualität
Diese Signale trennen das Alter der Seitengenerierung, Aktivität des Paketmanagers und Upstream-Release-Vergleich. Versionsrückstand wird nur gemeldet, wenn eine Evidenz-URL und vergleichbare Versionen vorhanden sind.
Seite generiert2026-07-10
Manager-Version0.32
Manager aktualisiert2026-06-19
lokale DatenOK
Upstreamaktuell
neueste erkannte Version0.32
https://github.com/agl/jbig2enc
- OKEs wurden keine Aktualitätswarnungen generiert.
Installationsmetadaten
Paketmetadaten
| Paketschlüssel | brew:jbig2enc |
|---|---|
| Version | 0.32 |
| Paketmanager | Homebrew |
| Paketmanager-Seite | https://formulae.brew.sh/formula/jbig2enc |
| Homepage | https://github.com/agl/jbig2enc |
| Repository | https://github.com/agl/jbig2enc |
| Upstream-Dokumentation | https://github.com/agl/jbig2enc/blob/master/README.md |
| Lizenz | Apache-2.0 |
| Quellarchiv | https://github.com/agl/jbig2enc/archive/refs/tags/0.32.tar.gz |
| Zuletzt aktualisiert | 2026-06-19T22:36:09Z |
| Pulse | updated |
| Abhängigkeiten | giflib, jpeg-turbo, leptonica, libpng, libtiff, webp |
| Build-Abhängigkeiten | autoconf, automake, libtool, pkgconf |
| Bottle | verfügbar (auf arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | nicht definiert |
| Dienst | keiner deklariert |
Registry-Fakten
Details aus der Quelldatenbank
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | jbig2enc |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
Source-Datenbank-Treffer
Andere Paketmanager-Einträge
Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.
Debian apt95%
jbig2 0.30-1
encoder for JBIG2 - command-line tool
https://github.com/agl/jbig2enc
sudo apt install jbig2- Section: utils
- Architecture: amd64
- Source Package: jbig2enc
- 3 Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
Debian apt95%
libjbig2enc-dev 0.30-1
encoder for JBIG2 - development headers
https://github.com/agl/jbig2enc
sudo apt install libjbig2enc-dev- Section: libdevel
- Architecture: amd64
- Source Package: jbig2enc
- 2 Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
Debian apt95%
libjbig2enc0t64 0.30-1
encoder for JBIG2 - libraries
https://github.com/agl/jbig2enc
sudo apt install libjbig2enc0t64- Section: libs
- Architecture: amd64
- Source Package: jbig2enc
- 6 Abhängigkeiten
- 1 stellt bereit
- 1 optionale Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
Nix95%
jbig2enc
nix profile install nixpkgs#jbig2enc- normalized package name match
- Abgeglichen nach: Jbig2enc
Ubuntu apt95%
jbig2 0.29-2.1build1
encoder for JBIG2 - command-line tool
https://github.com/agl/jbig2enc
sudo apt install jbig2- Section: universe/utils
- Architecture: amd64
- Source Package: jbig2enc
- 3 Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
Ubuntu apt95%
libjbig2enc-dev 0.29-2.1build1
encoder for JBIG2 - development headers
https://github.com/agl/jbig2enc
sudo apt install libjbig2enc-dev- Section: universe/libdevel
- Architecture: amd64
- Source Package: jbig2enc
- 2 Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
Ubuntu apt95%
libjbig2enc0t64 0.29-2.1build1
encoder for JBIG2 - libraries
https://github.com/agl/jbig2enc
sudo apt install libjbig2enc0t64- Section: universe/libs
- Architecture: amd64
- Source Package: jbig2enc
- 6 Abhängigkeiten
- 1 stellt bereit
- 1 optionale Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
apk95%
jbig2enc 0.30-r0
JBIG2 Encoder
https://github.com/agl/jbig2enc
sudo apk add jbig2enc- License: Apache-2.0
- Architecture: x86_64
- Source Package: jbig2enc
- 1 Abhängigkeiten
- 1 stellt bereit
- normalized package name match
- Abgeglichen nach: Jbig2enc
apk95%
jbig2enc-dev 0.30-r0
JBIG2 Encoder (development files)
https://github.com/agl/jbig2enc
sudo apk add jbig2enc-dev- License: Apache-2.0
- Architecture: x86_64
- Source Package: jbig2enc
- 1 Abhängigkeiten
- normalized package name match
- Abgeglichen nach: Jbig2enc
apk95%
jbig2enc-doc 0.30-r0
JBIG2 Encoder (documentation)
https://github.com/agl/jbig2enc
sudo apk add jbig2enc-doc- License: Apache-2.0
- Architecture: x86_64
- Source Package: jbig2enc
- normalized package name match
- Abgeglichen nach: Jbig2enc
apk95%
jbig2enc-static 0.30-r0
JBIG2 Encoder (static library)
https://github.com/agl/jbig2enc
sudo apk add jbig2enc-static- License: Apache-2.0
- Architecture: x86_64
- Source Package: jbig2enc
- normalized package name match
- Abgeglichen nach: Jbig2enc
MacPorts95%
jbig2enc
sudo port install jbig2enc- normalized package name match
- Abgeglichen nach: Jbig2enc
Quellspur
Aus Repository-Daten generiert
Diese Seite wird von av-web aus dem privaten Paket-SQLite-Artefakt bereitgestellt, das scripts/generate-pkg-sqlite.py erstellt.
Combined YAML source
View the package source record on GitHub.
Verwendete Quellen
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment