DropMachine • Reduce Size
Shrink PDFs Fast
Only for Mac
Free
Mac
Drop PDFs on your Dock to shrink them fast on your Mac. Images work too, and recoverable originals make oversized files easier to share.
DropMachine shrinks oversized PDFs in seconds so they are easier to email, upload, archive, and store. It can also reduce image files when you need a quick cleanup, while PDF compression remains the main workflow.
Just drop one or more PDF files, or the occasional JPG, PNG, HEIC, or TIFF image, onto the DropMachine Dock icon or into the app window. DropMachine reduces them locally on your Mac, replaces the original only when a smaller version is actually produced, and keeps a recoverable backup for as long as you choose.
Why people choose DropMachine:
- Fast drag-and-drop PDF compression
- Made for scanned and image-heavy PDFs
- Secondary image reduction for JPG, PNG, HEIC, and TIFF files
- On-device processing for privacy
- Recoverable originals with configurable retention
- Recent file history with size-reduction details
- Automatic cleanup of temporary backups
- Simple workflow with no subscription
Built for everyday PDF bottlenecks
Large PDFs can block email attachments, portal uploads, client submissions, insurance claims, expense systems, and long-term storage. DropMachine removes the friction without making you open a full PDF editor.
What DropMachine does:
- Compresses PDFs directly on your Mac
- Reduces common image files when they can be made smaller
- Works from the Dock for a one-step workflow
- Queues multiple files dropped together
- Replaces the file only when the result is smaller
- Lets you reveal the optimized file, reveal the backup, or recover the original copy
- Shows recent files, size changes, and all-time space saved
Best results
DropMachine works especially well on scanned PDFs, OCR documents, and PDFs that mix text with images. Image reduction is useful for oversized screenshots, photos, and exports. Text-only PDFs or files that are already highly optimized may shrink less, or not at all.
Private by default
Your files stay on your Mac. No cloud upload required.
If your PDF is too big and you want the fastest fix, DropMachine is built for that moment.
- This app hasn’t received enough ratings or reviews to display an overview.
Version 3.3 brings a redesigned DropMachine, clearer results, and more reliable recovery.
- Redesigned main window and compact results.
- Four tiny mechanical animations with sparkling transitions.
- Choose files from the window or with Command-O.
- Clearer batch totals and individual file results.
- Set image dimensions to 25%, 50%, 75%, or 100% in Settings.
- More reliable recovery of retained originals after interrupted processing.
- Improved queue handling when adding files during a batch.
The developer, ViSSee AG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ViSSee AG
- Size
- 5.4 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 7 more
- English, French, German, Italian, Japanese, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 ViSSee. All rights reserved.