Compress PDF
Reduce PDF file size without visible quality loss.
Drop PDF here or click to browse
Single file · Max 100.0 MB
How it works
- 1
Upload your PDF and choose a compression level: low, medium, or high.
- 2
Preview the estimated new file size before committing.
- 3
Click "Compress" and download the optimized PDF.
Why use our Compress PDF?
100% Private
All processing happens in your browser. Files are never uploaded to any server.
No signup required
Use the tool instantly — no account, no email, no credit card needed.
Works everywhere
Runs on any device with a modern browser — desktop, tablet, or mobile.
No quality loss
Direct PDF manipulation preserves fonts, images, and vectors at original fidelity.
Frequently asked questions
How much can I reduce my PDF size?
Typical results: 20-60% smaller. PDFs heavy with unoptimized images see the most reduction.
Will text still be sharp after compression?
Text is rendered as vectors and is not affected by compression. Only raster images are downsampled at higher levels.
Can I compress a PDF/A file?
Compression may invalidate PDF/A compliance. Convert to standard PDF first, then compress.
What is linearization?
Linearization restructures the PDF so the first page loads immediately in browsers — useful for large documents shared online.
Is there a file size limit?
No hard limit. The tool handles files up to several hundred MB in-browser on modern devices.