Enter a target size
Type the size you need in MB. On export, resolution and quality are lowered step by step until the file fits – with lower limits so everything stays readable.
For macOS
Shrink PDFs.
Privately, right on your Mac.
Too big for an email attachment? Just enter the size you need – SlimShift PDF shows you up front how small the file will get, and does the rest.
For macOS 14 Sonoma and later
9.2 → 2.7 MB
Example from the screenshot
100% local
No upload, no account
72–300 DPI
Resolution of your choice
Everything that makes a PDF smaller.
From a quick email version to a tidy archive scan – with clear options instead of cryptic settings.
Live estimate
Before you export, you see how large the file will be – calculated by actually processing it, including an estimate of the quality loss.
Text stays sharp
“Images only” recompresses embedded photos and graphics. Text and vector graphics stay untouched – sharp, selectable and searchable.
Great for scans
“Whole pages”, grayscale and true 1-bit black & white get the most out of scanned documents.
Pages & layout
Remove pages with a click on the thumbnail, combine 2 or 4 pages per sheet, strip metadata and file attachments.
Honest analysis
The app detects images, color and scans, estimates the compression potential and suggests suitable settings – or tells you when a file is already compact.
Made for every document.
Scan, photo book or research paper – SlimShift PDF recognizes what’s inside the file and suggests the right settings.
Done in three steps.
No account, no setup. Open, adjust, export.
Drop in a PDF
Drag a PDF file into the window or open it with ⌘O. The app analyzes the document right away.
Choose settings
Enter a target size or pick compression, resolution and color mode yourself. The estimate updates live.
Export
Press ⌘E to save a new, smaller file. Your original stays untouched.
Your files stay on your Mac.
Contracts, job applications, bank statements: the very PDFs you need to shrink don’t belong on someone else’s server. SlimShift PDF processes everything locally – nothing is uploaded.
- Processed locally only
- No upload, works offline
- No account, no tracking
Ready for smaller PDFs?
SlimShift PDF is coming soon to the Mac App Store.
Requires macOS 14 Sonoma or later · English and German