Compress PDF
Rebuild the PDF with optimized structure to reduce file size. Works fully offline.
All processing happens in your browser — your files never leave your device.
Drop files here
How to compress a PDF online
Reduce PDF file size by optimizing internal structure — helpful for email and cloud sharing. Compare before/after size instantly.
How to use
- Upload your PDF.
- Click Compress and review size change.
- Download the compressed PDF when size is reduced.
FAQ
- Will quality drop?
- This tool mainly restructures the file; scanned PDFs may see limited savings.
- Upload required?
- No — fully local.
- Why is the file larger after?
- Some PDFs are already optimized; rebuilding can slightly increase size.
Compression is local — safe for sensitive documents.