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zipic

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Local image compression and Zipic-app expert for macOS and native Windows. Uses the Zipic CLI with JSON results, per-file saved_pct and exit codes; URL Scheme is a limited fallback. Use for compressing, optimizing or shrinking images, batch compression, conversion to WebP/AVIF/HEIC/JXL (including lossless JPEG XL), exporting PDF pages as images, hitting a target file size ("under 500 KB", "max 2 MB"), SVG optimization, resizing, presets and compression history. Also use for Zipic pricing, Pro features, activation, free-tier limits, troubleshooting, comparisons, CLI setup and workflow integration. Requires the installed Zipic GUI in the same execution environment. Windows uses the packaged zipic.exe alias and PowerShell; macOS uses Zipic.app. Format support and integrations differ by platform.

skills/zipic/SKILL.md

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Oct 15, 2026
License
MIT

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# Zipic

Image compression on macOS and Windows, 100% on-device. Drive the installed GUI via its CLI; URL Scheme is a fallback when the CLI is unavailable.

## Platform and shell

Identify the OS, architecture and shell **where commands execute**, rather than the user's desktop OS. Keep the GUI, CLI and input/output paths on the same host and user account.

- **macOS**: use `zipic` and POSIX shell syntax. If missing, run `bash "<skill-dir>/scripts/detect.sh"`.
- **Native Windows**: read [reference/windows.md](reference/windows.md) before setup or compression. Use PowerShell and `zipic.exe`; run `& "<skill-dir>\scripts\detect.ps1"` to resolve the executable and verify its version. The packaged CLI is `ZipicCli.exe`, exposed as the `zipic.exe` app execution alias; the GUI's `Zipic.exe` is a different executable.
- **WSL**: there is no Linux Zipic binary. Use Windows PowerShell through WSL interop with paths converted by `wslpath -w`, following the Windows reference. A Linux container or remote Linux host without Windows interop cannot invoke the Windows GUI.

Resolve `<skill-dir>` from this loaded skill's location; script paths are not relative to the user's project. On Windows use `& $exe` for a resolved executable, `$env:NAME` for environment variables, quoted paths and argument arrays. Do not copy Bash continuations, `open`, `brew` or `/tmp` paths into PowerShell.
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