Features EN

Features

Input Methods

• Manual compression: drag & drop, clipboard paste, and system file picker
• Folder automation: watch folders and auto-compress new files (toggle from the tray menu)

Supported Formats

JPEG, PNG, WebP, AVIF, HEIC, TIFF, PDF (see Compression-Engine-EN)

Compression Modes & Options

• 5 compression modes: quality first / balanced / size first / advanced / target size
• 6 adjustable quality levels (L1–L6)
• Output format conversion (e.g. PNG → WebP / AVIF)
• Overwrite original / skip compressed / copy after compression / preserve metadata / resize limits

UI

• Compact light / dark modes
• Frameless + transparent window that auto-sizes to content
• Bilingual UI (Chinese / English, and more)
• Auto-update download / install progress prompts

System Integration

Feature	Description
System tray	Persistent tray: open, compression stats, auto-update toggle, automation toggle, quit
Launch at login	tauri-plugin-autostart (Windows/macOS), toggle in settings
Close to tray	Close button hides to tray instead of quitting
Single instance	Re-launch brings up the existing window
Auto-update	Tauri updater + GitHub Release, signature-verified installers
Ghostscript one-click install	Global banner when the PDF dependency is missing (see Ghostscript-Install-EN)

Compression Stats

• Tray shows "compressed N · saved N B"
• The result list shows before/after sizes for every file

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