macOS
Homebrewverified · 100%
brew install tiff2pnglocal Homebrew formula metadata
brew
Install tiff2png with Homebrew
TIFF to PNG converter. Version 0.92 via Homebrew; verified from local package data.
install
Additional install commands
overview
Package summary
TIFF to PNG converter
Project links
Commands and aliases
- tiff2png
history
Project history and usage
tiff2png is a small command-line converter for turning TIFF images into PNG files. Its official libpng-hosted page describes the main goal as direct TIFF-to-PNG conversion while preserving alpha transparency, scaling information, and user-controlled compression.
Project history
The official page credits Willem van Schaik, Greg Roelofs, and Ralph Giles as authors and presents version 0.92 as the current release. It also records earlier lineage through Willem van Schaik's separate 0.7 offshoot, labelled 0.82, and explains behavioral differences around wildcard batch conversion and overwrite handling.
The project sits close to the PNG ecosystem rather than the modern image-toolkit world: the official page is hosted under libpng's PNG applications area and lists libpng, zlib, libtiff, and IJG JPEG libraries as supporting components.
Adoption history
The official page lists source tarballs, a GitHub repository, git mirrors, and older platform binaries for systems including SCO OpenServer and 32-bit Windows. That distribution style reflects an older portable C utility that survived through source archives, mirrors, and package-manager formulas.
Homebrew keeps tiff2png available as a narrow utility for users who want one conversion command rather than a full ImageMagick-style suite.
How it is used
tiff2png is used for batch conversion, with the official page giving a wildcard example such as converting multiple .tiff files at once. It is especially relevant when users care about preserving transparency while producing PNG output.
For package users, the practical use case is scripted image conversion in build, publishing, archival, or web pipelines where a dedicated TIFF-to-PNG binary is simpler than invoking a larger image-processing framework.
Why package nerds care
Its package-nerd significance is mostly historical and practical: it is the sort of small, old-school image utility that package managers preserve because scripts depend on exact command names and behaviors.
The official warning about a related offshoot lacking wildcard support and overwrite checks is a reminder that tiny conversion tools often matter because their edge-case behavior is part of the package contract.
Timeline
- 2000-2005, 2014: Copyright years shown on the official tiff2png page.
- 2000s: Official page documents version 0.92, older platform binaries, and support libraries.
- 2014: GitHub repository created for rillian/tiff2png as a libpng.org-derived conversion utility.
Related projects
- The official page links the utility to libpng, zlib, libtiff, and the Independent JPEG Group library.
- The official page also notes Willem van Schaik's separate 0.82-labelled offshoot from version 0.7.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 3 runtime dependencies.
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 |
|---|---|---|---|
tiff2png | cli | global executable |
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 generated2026-07-08
manager version0.92
manager updated
local dataok
upstreamcurrent
latest detectedv0.92
https://github.com/rillian/tiff2png
- infoNo package-manager update timestamp was available.low confidence
install metadata
Package metadata
| Package key | brew:tiff2png |
|---|---|
| Version | 0.92 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/tiff2png |
| Homepage | http://www.libpng.org/pub/png/apps/tiff2png.html |
| Repository | https://github.com/rillian/tiff2png |
| Upstream docs | http://www.libpng.org/pub/png/apps/tiff2png.html |
| License | ISC |
| Source archive | https://github.com/rillian/tiff2png/archive/refs/tags/v0.92.tar.gz |
| Dependencies | jpeg-turbo, libpng, libtiff |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | tiff2png |
| Version Scheme | 0 |
| Revision | 3 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
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
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment