macOS
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brew install jbig2decprovider-native install command
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Install jbig2dec with Homebrew
JBIG2 decoder and library (for monochrome documents). Version 0.20 via Homebrew; verified 2026-07-28.
install
Additional install commands
overview
Package summary
JBIG2 decoder and library (for monochrome documents)
Project links
Commands and aliases
- jbig2dec
history
Project history and usage
jbig2dec is a decoder library and command-line utility for the JBIG2 bi-level image compression format, also known as ITU T.88 and ISO/IEC 14492. Its practical niche is decoding monochrome scanned-document images, including JBIG2 streams embedded in PDF files.
Project history
The project README describes jbig2dec as a decoder library and example utility, with development source kept in the Ghostscript Git repository and a GitHub mirror under ArtifexSoftware. The README also notes that the GitHub repository is a mirror and that releases are hosted through GitHub tags.
The SourceForge project page records that jbig2dec is no longer hosted there and points users to Ghostscript. That migration reflects the project's place in the Artifex/Ghostscript ecosystem, where JBIG2 decoding is part of broader PDF and page-description-language handling.
Adoption history
The input metadata shows packaging across Homebrew, Alpine, Debian/Ubuntu, Fedora, MacPorts, Nix, Arch, and openSUSE. That broad packaging footprint matches a small C utility/library whose value is mostly as infrastructure for document conversion, PDF processing, and image decoding stacks.
How it is used
The command can decode a single JBIG2 stream to PNG or PBM output, or accept separate global and page streams used by embedded PDF organization. The man page documents diagnostic, dump, hash, quiet, verbose, and output-format options, while the README says the decoder remains useful in limited contexts and requests problematic files for testing.
Why package nerds care
jbig2dec is the kind of compact media package that earns its place by handling one difficult format well enough for bigger tools to depend on it. It is especially relevant to PDF pipelines because JBIG2 is referenced by PDF 1.4 and later, and because scanned monochrome documents can achieve very high compression ratios.
Timeline
- SourceForge era: jbig2dec is hosted as a standalone open-source project.
- Ghostscript era: Project hosting moves away from SourceForge and into the Ghostscript/Artifex ecosystem.
- 2023: The man page identifies version 0.20 and documents the command-line interface.
- Packaging era: Major Unix-like package managers carry jbig2dec as a small media/decoder dependency.
Related projects
- jbig2dec is related to JBIG2, ITU T.88, ISO/IEC 14492, PDF 1.4 and later, Ghostscript, Artifex, MuPDF, scanned-document compression, PNG, and PBM output tooling.
Sources
security posture
Risk level: green
library-like package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- library-like package without higher-risk signals
Signals
- metadata:library-like
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
jbig2dec | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version0.20
manager updated2026-07-28
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:jbig2dec |
|---|---|
| Version | 0.20 |
| Package manager | Homebrew |
| Homepage | https://github.com/ArtifexSoftware/jbig2dec |
| Repository | https://github.com/ArtifexSoftware/jbig2dec |
| Last updated | 2026-07-28T13:57:49+09:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- curated package history
- pkgdb category and tag curation