Compress PDF
Make a PDF smaller. Pick a quality preset and see the size before and after.
- No uploads
- No limits
- No signup
Drop a PDF here
or click to browse · paste works too
- Input:
- Output:
- Smaller PDF
- Runs on:
- Your device
- Size limit:
- None
- Account:
- Not needed
How to use Compress PDF
Add your PDF
Drop it in or click to browse. It never leaves your device.
Pick a compression level
High quality keeps photos sharp, smallest shrinks them the most.
Compare and download
See the size before and after, then save the smaller PDF.
Why Compress PDF on Toolshed
No uploads
Everything runs in this browser tab. Your files never leave your device.
No limits
No file-size caps, no daily quotas. Process as much as your device can handle.
No signup
No account, no email, no watermark.
Frequently asked questions
How does the PDF compressor shrink my file?
It reduces the resolution and quality of the photos inside your PDF and repacks the file more efficiently. Text and vector graphics are left untouched.
Will compressing hurt my PDF's quality?
Only the photos change, and only as much as the level you pick. If your PDF has no photos that can be shrunk, you simply get the original back.
Are my files uploaded anywhere?
No. Compress PDF runs entirely in your browser. Your files are processed on your device and are never sent to a server.
Is there a file size limit?
No fixed limit. The only limit is your device's memory. Very large files work best in a desktop browser.
Is Compress PDF really free?
Yes. There's no account and no watermark. A short optional ad, or a 20-second wait, unlocks each download. That's how we keep it free.
Does it work offline?
Once the page has loaded, processing happens locally, so it keeps working even if your connection drops.