Compress PDF
Reduce PDF file size in your browser. No upload, no server.
âšī¸ Browser-side PDF compression works best on image-heavy PDFs (scans, photos). For text-only PDFs, savings may be small. For maximum compression, use a server-based tool.
đī¸
Drop your PDF here or click to browse
Why compress PDFs?
- Email attachments have size limits (usually 10-25 MB)
- Smaller files upload and download faster
- Save storage space
- Meet website upload requirements
Compression tips
- Scanned PDFs compress best (image-heavy)
- Text-only PDFs don't compress much
- Start with low compression; increase if needed
Privacy
PDFs are processed locally in your browser. Nothing is uploaded.
Frequently Asked Questions
Is this Compress PDF tool free?
Yes, completely free.
Are my PDFs uploaded?
No. Compression happens entirely in your browser.
How much can I compress a PDF?
It depends on the content. Image-heavy PDFs (scans, photos) can shrink 20-60%. Text-heavy PDFs may compress only 5-15%.
Does compression reduce quality?
Text stays sharp. Images may lose some quality depending on the compression level. Start with low compression and increase gradually.
Why is browser compression limited?
Full PDF compression requires re-encoding images, which needs a server or heavy WASM. This tool focuses on structural compression and object stream optimization.