Private browser-based PDF compression
Shrink PDFs Fast.
Free PDF compression with 30 free compressions every 30 days. Compress PDFs right in your browser with multiple compression levels. Your files stay on your device.
Compression level
Stronger compression may turn pages into images, which can remove selectable text.
Free uses: 0 of 30 used in the last 30 days. 30 remaining.
Your PDF stays on your device.
No uploads
Compress PDFs directly in your browser so files stay on your device.
Multiple compression levels
Choose from text-preserving optimization or stronger image-based compression.
Desktop and mobile friendly
A large tap-friendly upload area works well on phones, tablets, and laptops.
How it works
01
Upload
Drag in a PDF or tap the upload card to choose one from your device.
02
Choose
Pick Balanced for everyday use, or Max Compression when you need the smallest file.
03
Download
Save the optimized PDF when processing finishes. Nothing is uploaded.
Compression options explained
Start with Balanced for most PDFs. Use Smart Optimize for selectable text, or Max Compression when smaller size matters more than visual quality.
Smart Optimize
Preserves selectable text when possible and re-saves the PDF efficiently.
High Quality
Rasterizes pages at a sharper quality for moderate reduction.
Balanced
The default option for solid readability and smaller files.
Max Compression
Prioritizes the smallest file size with lower visual quality.
Privacy-first
GPSFX PDF Shrinker processes your file in the browser. Your PDF is not uploaded to our server, and there are no API routes involved.
Supporter passes
Free users get 30 compressions every 30 days. Ko-fi supporter passes unlock unlimited browser-only compressions.
Free
$0
30 free compressions every 30 days.
- ✦Browser-only compression
- ✦Multiple compression levels
- ✦Ad-supported
Supporter Passes
Ko-fi
Unlock unlimited compressions with a 1 Year or Lifetime pass.
- ✦1 Year and Lifetime options
- ✦Ko-fi handles purchases
- ✦Same email required for activation
FAQ
Are my PDFs uploaded?
No. The shrinker runs in your browser and keeps your PDF on your device.
Why might text stop being selectable?
Stronger compression turns pages into images to reduce size. Use Smart Optimize when selectable text matters most.
Will every PDF shrink?
Not always. Some PDFs are already compressed, but Max Compression can often reduce visual PDFs further.