macOS
brew install tiff2pnglocal Homebrew formula metadata
安装
brew install tiff2pnglocal Homebrew formula metadata
概览
TIFF to PNG converter
历史
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.
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.
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.
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.
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.
安全态势
narrow executable package without higher-risk signals.
绿色 风险 · 低 置信度 · appliance
在无人值守的代理使用前,请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。
可执行文件
| 命令 | 类型 | 暴露范围 | 备注 |
|---|---|---|---|
tiff2png | cli | 全局可执行文件 |
新鲜度
这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时,才会提示版本落后。
https://github.com/rillian/tiff2png
安装元数据
| 软件包键 | brew:tiff2png |
|---|---|
| 版本 | 0.92 |
| 软件包管理器 | Homebrew |
| 软件包管理器页面 | https://formulae.brew.sh/formula/tiff2png |
| 主页 | http://www.libpng.org/pub/png/apps/tiff2png.html |
| 仓库 | https://github.com/rillian/tiff2png |
| 上游文档 | http://www.libpng.org/pub/png/apps/tiff2png.html |
| 许可证 | ISC |
| 源码归档 | https://github.com/rillian/tiff2png/archive/refs/tags/v0.92.tar.gz |
| 依赖 | jpeg-turbo, libpng, libtiff |
| Bottle | 可用 (于 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | 未定义 |
| 服务 | 未声明 |
注册表事实
| 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 |
|
来源线索
此页面由 av-web 从 scripts/generate-pkg-sqlite.py 生成的私有软件包 SQLite 工件提供。
View the package source record on GitHub.