Finder Extension
ImageChunker includes a Finder Sync Extension that lets you chunk images directly from Finder’s context menu — no need to open the app first.
Enabling the Extension
Section titled “Enabling the Extension”- Open System Settings
- Navigate to Privacy & Security → Extensions → Finder Extensions
- Enable ImageChunker Finder Extension
- Restart Finder (Option-click Finder in Dock → Relaunch)
Using the Extension
Section titled “Using the Extension”Single Image — Right-click any supported image and select Chunk with ImageChunker.
Multiple Images — Select multiple images, right-click, and choose Chunk with ImageChunker. All images are added to the batch queue.
Folder — Right-click a folder to queue all supported images inside.
Supported File Types
Section titled “Supported File Types”| Extension | Format |
|---|---|
.jpg, .jpeg | JPEG |
.png | PNG |
.heic, .heif | HEIC |
.tiff, .tif | TIFF |
.webp | WebP |
Extension Settings
Section titled “Extension Settings”Configure in ImageChunker → Settings → Finder Extension:
Quick Process Mode — When enabled, uses default settings and processes immediately without showing the app.
Output Location — Choose where chunks are saved: same folder, subfolder, or ask every time.
Auto-Launch — Control whether ImageChunker opens automatically.
Troubleshooting
Section titled “Troubleshooting”Extension not appearing?
- Verify it’s enabled in System Settings → Extensions → Finder
- Restart Finder:
killall Finderor Option-click → Relaunch - Re-register:
pluginkit -r /Applications/ImageChunker.app/Contents/PlugIns/ImageChunkerFinderExtension.appex
Check extension status:
pluginkit -m -p com.apple.FinderSyncPrivacy & Security
Section titled “Privacy & Security”The extension runs in a secure sandbox with limited file access — it can only process files you explicitly select. Your images never leave your Mac, and no analytics or telemetry is collected.