Compress PDF Online
Reduce PDF file size instantly in your browser — no upload, 100% private.
Start Compressing
Account required — sign in with Google in 1 click
Why use Compress2Win?
- Reduce PDF size by up to 80% for easy sharing and email
- Runs entirely in your browser — your documents stay private
- No page limit — compress any PDF
- Text stays perfectly sharp after compression
- Available for registered users
How to use
- 1Sign in with Google, Microsoft, or your email.
- 2Click "Start Compressing" and drop your PDF into the tool.
- 3Choose your compression strength.
- 4Download your smaller PDF file instantly.
Frequently asked questions
How much can I reduce PDF file size?▾
PDFs can be reduced by 30–80%. Image-heavy PDFs compress the most.
Is PDF compression done in the browser?▾
Yes, PDF compression runs entirely in your browser. Your files are never uploaded.
Will compression reduce PDF quality?▾
Text remains perfectly sharp. Images inside the PDF may be slightly optimized.
Is there a page limit?▾
No page limit. Compress PDFs of any size.
Do I need an account?▾
An account is required. Sign in in under 10 seconds.