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brew / Rang 2910

pngcheck mit Homebrew, apt, dnf, MacPorts, Nix, zypper installieren

Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für pngcheck in AI-Agent-Workflows.

InstallationsbefehlSicherheitshinweise

Installation

Weitere Installationsbefehle

macOS

Homebrewverifiziert · 100%
brew install pngcheck

local Homebrew formula metadata

MacPortsverifiziert · 94%
sudo port install pngcheck

MacPorts ports tree · graphics/pngcheck/Portfile · Quelle: api.github.com

Linux

Debian aptverifiziert · 92%
sudo apt install pngcheck

Debian stable package indexes · pngcheck · Quelle: deb.debian.org

Fedora dnfverifiziert · 92%
sudo dnf install pngcheck

Fedora Rawhide package metadata · pngcheck · Quelle: dl.fedoraproject.org

Nixverifiziert · 92%
nix profile install nixpkgs#pngcheck

nixpkgs package indexes · pkgs/by-name/pn/pngcheck/package.nix · Quelle: api.github.com

openSUSE zypperverifiziert · 92%
sudo zypper install pngcheck

openSUSE Tumbleweed package metadata · pngcheck · Quelle: download.opensuse.org

Überblick

Paketzusammenfassung

Print info and check PNG, JNG, and MNG files

Befehle und Aliase

  • pngcheck

Verlauf

Projektgeschichte und Nutzung

pngcheck is a long-lived command-line validator and structural inspector for PNG, JNG, and MNG files.

Projektgeschichte

pngcheck began in the formative period of PNG. Its reconstructed repository history reaches 13 March 1995, although the earliest releases by Alexander Lehmann are missing. Development passed through Andreas Dilger and Greg Roelofs; Chris Lilley of the W3C took over in 2021. The modern pngcheck 4 series derives from version 3.0.3 and adds support for chunks introduced by later PNG editions, including animated PNG and content-credential data.

Adoptionsgeschichte

pngcheck has remained available across Unix, Windows, DOS, OS/2, Macintosh, and Amiga environments. It is packaged by Homebrew, Debian, Ubuntu, Fedora-family distributions, MacPorts, Nix, and openSUSE, reflecting its long-standing role as a small format-diagnostics utility.

Wie es verwendet wird

pngcheck verifies chunk CRCs and decompresses image data to test integrity. It can print dimensions and bit depth, dump chunk-level metadata, inspect palettes and transparency, extract embedded text, and batch-check collections of images.

Warum Paket-Nerds sich dafür interessieren

pngcheck is unusually close in age to PNG itself: its reconstructed history begins only six days after the format specification was finalized. It gives maintainers a low-level view of chunks, checksums, compressed image data, and metadata, making it useful for format debugging, test suites, damaged-file analysis, and package QA.

Zeitleiste

  • 1995-03-13: The reconstructed source history begins, six days after the PNG specification was finalized.
  • 2020-12-12: Version 3.0.0 removed the unsafe force-parsing option and fixed known buffer overruns.
  • 2021-04-25: Version 3.0.3 fixed a divide-by-zero decoding bug.
  • 2021: Chris Lilley took over development.
  • 2025: The historical libpng page confirmed the pnggroup GitHub repository as the official current home.
  • Version 4: Development added support for newer PNG Third and Fourth Edition chunks.

Related projects

  • The official page associates pngcheck with PNG, JNG, MNG, zlib, pngsplit, png-fix-IDAT-windowsize, and other PNG metadata or chunk-inspection tools.

Quellen

  • Official changelog: https://github.com/pnggroup/pngcheck/blob/master/CHANGELOG
  • Official current repository and README: https://github.com/pnggroup/pngcheck
  • Official historical home page: https://www.libpng.org/pub/png/apps/pngcheck.html

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.
  • Build-Metadaten listen 1 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

BefehlArtSichtbarkeitHinweis
pngcheckcliglobales 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 generiert2026-09-19
Manager-Version4.0.1
Manager aktualisiert2026-09-11
lokale DatenOK
Upstreamaktuell
neueste erkannte Versionv4.0.1

https://github.com/pnggroup/pngcheck

  • OKEs wurden keine Aktualitätswarnungen generiert.

Installationsmetadaten

Paketmetadaten

Paketschlüsselbrew:pngcheck
Version4.0.1
PaketmanagerHomebrew
Paketmanager-Seitehttps://formulae.brew.sh/formula/pngcheck
Homepagehttps://github.com/pnggroup/pngcheck
Repositoryhttps://github.com/pnggroup/pngcheck
LizenzHPND
Quellarchivhttps://github.com/pnggroup/pngcheck/archive/refs/tags/v4.0.1.tar.gz
Zuletzt aktualisiert2026-09-11T13:16:43Z
Pulseupdated
Build-Abhängigkeitencmake
Bottleverfügbar (auf arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnicht definiert
Dienstkeiner deklariert

Registry-Fakten

Details aus der Quelldatenbank

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namepngcheck
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

Source-Datenbank-Treffer

Andere Paketmanager-Einträge

Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.

Debian apt95%

pngcheck 3.0.3-3

print info and check PNG, JNG and MNG files

http://www.libpng.org/pub/png/apps/pngcheck.html

sudo apt install pngcheck
  • Section: graphics
  • Architecture: amd64
  • 2 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Pngcheck
Debian stable package indexes · deb.debian.org · Debian stable package indexes: pngcheck from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

pngcheck

nix profile install nixpkgs#pngcheck
  • normalized package name match
  • Abgeglichen nach: Pngcheck
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/pn/pngcheck/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

pngcheck 3.0.3-3

print info and check PNG, JNG and MNG files

http://www.libpng.org/pub/png/apps/pngcheck.html

sudo apt install pngcheck
  • Section: universe/devel
  • Architecture: amd64
  • 2 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Pngcheck
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: pngcheck from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
dnf95%

pngcheck 4.0.1-5.fc45

Command-line utility to check PNG image files

https://github.com/pnggroup/pngcheck

sudo dnf install pngcheck
  • License: HPND
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: pngcheck
  • 3 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Pngcheck
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: pngcheck from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/652278618dec9c023176a80c435a32a2c8154869fb0eb662c267a54df28d77d9-primary.xml.zst
zypper95%

pngcheck 4.0.1-1.4

PNG file format checker

https://github.com/pnggroup/pngcheck

sudo zypper install pngcheck
  • License: HPND
  • Category: Productivity/Graphics/Other
  • Architecture: x86_64
  • Source Package: pngcheck
  • 2 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Pngcheck
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: pngcheck from https://download.opensuse.org/tumbleweed/repo/oss/repodata/d310d5a96106e1e8872a385adf98aaa23be9db5d80937a6717314e7e7f37715065c6c748ab7ccee6475d620b46979c0fe64235fc0c46988e17edf659578fcf31-primary.xml.zst
MacPorts95%

pngcheck

sudo port install pngcheck
  • normalized package name match
  • Abgeglichen nach: Pngcheck
MacPorts ports tree · api.github.com · MacPorts ports tree: graphics/pngcheck/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

Paketgraph

Links stammen aus dem lokalen Paketbeziehungsgraph, Ergänzungen, Abhängigkeitskanten, Ecosystem-Matches und Paket-Hub-Mitgliedschaft.

Verwandte Tools

  • cmakeBuild dependency declared by Homebrew.

Gleicher Workflow

  • pngquantShares pkgdb curated category or tags: cli, image-tools, media, png.
  • pngpasteShares pkgdb curated category or tags: cli, image-tools, media, png.
  • pngcrushShares pkgdb curated category or tags: cli, image-tools, media, png.
  • png2icoShares pkgdb curated category or tags: cli, image-tools, media, png.
  • pngnqShares pkgdb curated category or tags: cli, image-tools, media, png.
  • spaceman-diffShares pkgdb curated category or tags: cli, image-tools, media.

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.

Verwendete Quellen

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